src/components/MarkInputs/Signature.tsx

@@ -85,7 +85,11 @@ export const MarkInputSignature = ({
         ></canvas>
         {typeof userMark?.mark !== 'undefined' && (
           <div className={styles.absolute}>
-            <MarkRenderSignature value={value} mark={userMark.mark} />
+            <MarkRenderSignature
+              key={userMark.mark.value}
+              value={userMark.mark.value}
+              mark={userMark.mark}
+            />
           </div>
         )}
         <div className={styles.reset}>

src/components/PDFView/PdfMarkItem.tsx

@@ -51,7 +51,11 @@ const PdfMarkItem = forwardRef<HTMLDivElement, PdfMarkItemProps>(
         }}
       >
         {typeof MarkRenderComponent !== 'undefined' && (
-          <MarkRenderComponent value={getMarkValue()} mark={userMark.mark} />
+          <MarkRenderComponent
+            key={getMarkValue()}
+            value={getMarkValue()}
+            mark={userMark.mark}
+          />
         )}
       </div>
     )