diff --git a/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/components/SolutionHistorySheet/index.tsx b/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/components/SolutionHistorySheet/index.tsx
index 83d8cda..4a21731 100644
--- a/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/components/SolutionHistorySheet/index.tsx
+++ b/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/components/SolutionHistorySheet/index.tsx
@@ -1,9 +1,9 @@
 import React from 'react';
 import { Sheet, SheetClose, SheetContent, SheetHeader, SheetTitle } from "@/components/ui/sheet";
 import { Button } from "@/components/ui/button";
-import { X, Check } from "lucide-react";
+import { X } from "lucide-react";
 import SolutionStatus from '../SolutionStatus';
-import { Solution } from '@/shared/types/task';
+import { Solution, TaskType } from '@/shared/types/task';
 
 interface SolutionHistorySheetProps {
   isOpen: boolean;
@@ -11,7 +11,6 @@ interface SolutionHistorySheetProps {
   solutions: Solution[];
   maxPoints: number;
   onSolutionSelect: (solution: Solution) => void;
-  currentSolutionId?: string | null;
 }
 
 const SolutionHistorySheet: React.FC<SolutionHistorySheetProps> = ({
@@ -19,10 +18,8 @@ const SolutionHistorySheet: React.FC<SolutionHistorySheetProps> = ({
   onOpenChange,
   solutions,
   maxPoints,
-  onSolutionSelect,
-  currentSolutionId
+  onSolutionSelect
 }) => {
-  
   return (
     <Sheet open={isOpen} onOpenChange={onOpenChange}>
       <SheetContent className="w-[350px] sm:w-[450px] p-0">
@@ -39,17 +36,15 @@ const SolutionHistorySheet: React.FC<SolutionHistorySheetProps> = ({
         
         <div className="flex flex-col mt-3 space-y-2.5 overflow-y-auto max-h-[calc(100vh-80px)] px-4 pb-4">
           {solutions.length > 0 ? (
-            solutions.map((solution) => (
+            solutions.map((solution, index) => (
               <div 
-                key={solution.id} 
-                className={`w-full cursor-pointer relative ${solution.id === currentSolutionId ? 'ring-2 ring-blue-500 rounded-lg' : ''}`}
-                onClick={() => onSolutionSelect(solution)}
+                key={solution.id || index} 
+                className="w-full cursor-pointer transition-transform hover:scale-[1.01]" 
+                onClick={() => {
+                  onSolutionSelect(solution);
+                  onOpenChange(false); 
+                }}
               >
-                {solution.id === currentSolutionId && (
-                  <div className="absolute top-2 right-2 z-10 bg-blue-500 text-white rounded-full p-1">
-                    <Check size={14} />
-                  </div>
-                )}
                 <SolutionStatus solution={solution} maxPoints={maxPoints} />
               </div>
             ))
@@ -64,4 +59,4 @@ const SolutionHistorySheet: React.FC<SolutionHistorySheetProps> = ({
   );
 };
 
-export default SolutionHistorySheet;
\ No newline at end of file
+export default SolutionHistorySheet;
diff --git a/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/index.tsx b/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/index.tsx
index 06cebdd..6c7899a 100644
--- a/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/index.tsx
+++ b/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/index.tsx
@@ -1,4 +1,4 @@
-import React, { useState, useRef, useEffect } from 'react';
+import React, { useState, useRef } from 'react';
 import { useParams } from 'react-router-dom';
 import { Task, TaskType, Solution } from '@/shared/types/task';
 import { useQuery } from '@tanstack/react-query';
@@ -30,9 +30,7 @@ const TaskSolution: React.FC<TaskSolutionProps> = ({
   const fileInputRef = useRef<HTMLInputElement>(null);
   const [isHistoryOpen, setIsHistoryOpen] = useState(false);
   const [selectedSolutionUrl, setSelectedSolutionUrl] = useState<string | null>(null);
-  const [currentSolution, setCurrentSolution] = useState<Solution | null>(null);
   const { id: competitionId } = useParams<{ id: string }>();
-  const taskIdRef = useRef<string | null>(null);
 
   const solutionsQuery = useQuery({
     queryKey: ['solutionHistory', competitionId, task.id],
@@ -41,83 +39,45 @@ const TaskSolution: React.FC<TaskSolutionProps> = ({
   });
 
   const solutionHistory = solutionsQuery.data || [];
-  // Handle task changes
-  useEffect(() => {
-    if (taskIdRef.current !== task.id) {
-      setCurrentSolution(null);
-      setSelectedSolutionUrl(null);
-      setAnswer("");
-      setSelectedFile(null);
-      taskIdRef.current = task.id;
-      
-      // Wait for the query to complete
-      if (!solutionsQuery.isLoading && solutionHistory.length > 0) {
-        // Get the most recent solution (last in the array)
-        const latestSolution = solutionHistory[solutionHistory.length - 1];
-        setCurrentSolution(latestSolution);
-      }
-    }
-  }, [task.id, solutionHistory, solutionsQuery.isLoading, setAnswer, setSelectedFile]);
-
-  // Refresh current solution when the solution history changes (after a new submission)
-  useEffect(() => {
-    if (!solutionsQuery.isLoading && solutionHistory.length > 0) {
-      // If we don't have a current solution or there's a new submission
-      // (which would be the last item in the array)
-      if (!currentSolution || 
-          currentSolution.id !== solutionHistory[solutionHistory.length - 1].id) {
-        // Set to the latest solution (last in the array)
-        setCurrentSolution(solutionHistory[solutionHistory.length - 1]);
-      }
-    }
-  }, [solutionHistory, currentSolution, solutionsQuery.isLoading]);
-
-  // Load solution content when current solution changes
-  useEffect(() => {
-    const loadSolutionContent = async () => {
-      if (!currentSolution || !currentSolution.content) return;
-      
-      try {
-        if (task.type === TaskType.FILE) {
-          setSelectedFile(null);
-          setSelectedSolutionUrl(currentSolution.content);
-        } else {
-          const response = await fetch(currentSolution.content);
-          if (!response.ok) {
-            throw new Error(`Failed to fetch solution content: ${response.status}`);
-          }
-          const text = await response.text();
-          setAnswer(text);
-        }
-      } catch (error) {
-        console.error('Error loading solution content:', error);
-      }
-    };
-
-    loadSolutionContent();
-  }, [currentSolution, task.type, setAnswer, setSelectedFile]);
 
   const handleOpenHistory = () => {
     setIsHistoryOpen(true);
   };
 
-  const handleSolutionSelect = (solution: Solution) => {
-    setCurrentSolution(solution);
-    setIsHistoryOpen(false);
+  const latestSolution = solutionHistory && solutionHistory.length > 0 ? solutionHistory[0] : null;
+
+  const handleSolutionSelect = async (solution: Solution) => {
+    if (!solution.content) return;
+    
+    try {
+      if (task.type === TaskType.FILE) {
+        // For file tasks, just store the URL
+        setSelectedFile(null); // Clear any selected file first
+        setSelectedSolutionUrl(solution.content);
+      } else {
+        // For INPUT and CODE tasks, fetch the content and set as answer
+        const response = await fetch(solution.content);
+        if (!response.ok) {
+          throw new Error(`Failed to fetch solution content: ${response.status}`);
+        }
+        const text = await response.text();
+        setAnswer(text);
+      }
+    } catch (error) {
+      console.error('Error loading solution content:', error);
+    } 
   };
 
+  // Function to clear the existing file URL
   const handleClearExistingFile = () => {
     setSelectedSolutionUrl(null);
   };
 
-  const handleSubmitWrapper = () => {
-    onSubmit();
-  };
 
   return (
     <div className="md:w-[500px] flex flex-col gap-4">
-      {currentSolution ? (
-        <SolutionStatus solution={currentSolution} maxPoints={task.points}/>
+      {latestSolution ? (
+        <SolutionStatus solution={latestSolution} maxPoints={task.points}/>
       ) : (
         <div className="bg-gray-100 rounded-lg p-4 text-gray-600 font-hse-sans">
           Решение еще не отправлено
@@ -125,10 +85,7 @@ const TaskSolution: React.FC<TaskSolutionProps> = ({
       )}
       
       {task.type === TaskType.INPUT && (
-        <InputSolution 
-          answer={answer} 
-          setAnswer={setAnswer}
-        />
+        <InputSolution answer={answer} setAnswer={setAnswer} />
       )}
       
       {task.type === TaskType.FILE && (
@@ -142,14 +99,11 @@ const TaskSolution: React.FC<TaskSolutionProps> = ({
       )}
       
       {task.type === TaskType.CODE && (
-        <CodeSolution 
-          answer={answer} 
-          setAnswer={setAnswer}
-        />
+        <CodeSolution answer={answer} setAnswer={setAnswer} />
       )}
       
       <ActionButtons 
-        onSubmit={handleSubmitWrapper} 
+        onSubmit={onSubmit} 
         onHistoryClick={handleOpenHistory}
       />
       
@@ -159,10 +113,9 @@ const TaskSolution: React.FC<TaskSolutionProps> = ({
         solutions={solutionHistory}
         maxPoints={task.points}
         onSolutionSelect={handleSolutionSelect}
-        currentSolutionId={currentSolution?.id}
       />
     </div>
   );
 };
 
-export default TaskSolution;
\ No newline at end of file
+export default TaskSolution;