diff --git a/src/main/SubtitleEditor.tsx b/src/main/SubtitleEditor.tsx
index 07a957aa3..c0d946381 100644
--- a/src/main/SubtitleEditor.tsx
+++ b/src/main/SubtitleEditor.tsx
@@ -299,7 +299,10 @@ const UploadButton: React.FC<{
         try {
           const text = e.target.result.toString();
           const subtitleParsed = parseSubtitle(text);
-          dispatch(setSubtitle({ identifier: selectedId, subtitles: { cues: subtitleParsed, tags: subtitle.tags } }));
+          dispatch(setSubtitle({
+            identifier: selectedId,
+            subtitles: { cues: subtitleParsed, tags: subtitle.tags, deleted: false },
+          }));
         } catch (e) {
           console.error(e);
           setErrorMessage(t("subtitles.uploadButton-error-parse"));
diff --git a/src/main/SubtitleSelect.tsx b/src/main/SubtitleSelect.tsx
index 267092862..a1f9ab5a6 100644
--- a/src/main/SubtitleSelect.tsx
+++ b/src/main/SubtitleSelect.tsx
@@ -233,7 +233,7 @@ const SubtitleAddButton: React.FC<{
     const id = values.selectedSubtitle;
     const relatedSubtitle = subtitlesForDropdown.find(tag => tag.id === id);
     const tags = relatedSubtitle ? relatedSubtitle.tags : [];
-    dispatch(setSubtitle({ identifier: id, subtitles: { cues: [], tags: tags, delete: false } }));
+    dispatch(setSubtitle({ identifier: id, subtitles: { cues: [], tags: tags, deleted: false } }));
 
     // Reset
     setIsPlusDisplay(true);
diff --git a/src/main/TrackSelection.tsx b/src/main/TrackSelection.tsx
index 7be0c65b2..2eb8330fb 100644
--- a/src/main/TrackSelection.tsx
+++ b/src/main/TrackSelection.tsx
@@ -211,7 +211,7 @@ const SelectButton: React.FC<selectButtonInterface> = ({ handler, text, Icon, to
     }
   };
 
-  const ref = React.useRef<HTMLDivElement>(null);
+  const ref = React.useRef<HTMLButtonElement>(null);
 
   return (
     <ThemedTooltip title={tooltip}>
diff --git a/src/main/VideoPlayers.tsx b/src/main/VideoPlayers.tsx
index d16f03ca6..dea406b94 100644
--- a/src/main/VideoPlayers.tsx
+++ b/src/main/VideoPlayers.tsx
@@ -2,14 +2,13 @@ import React, { useState, useRef, useEffect, useImperativeHandle } from "react";
 
 import { css } from "@emotion/react";
 
-import { useAppDispatch, useAppSelector } from "../redux/store";
+import { AppDispatch, useAppDispatch, useAppSelector } from "../redux/store";
 import {
   selectIsPlaying,
   selectCurrentlyAtInSeconds,
   setIsPlaying,
   selectIsMuted,
   selectVolume,
-  selectVideoURL,
   selectVideoCount,
   selectDurationInSeconds,
   setPreviewTriggered,
@@ -39,7 +38,6 @@ import { useTheme } from "../themes";
 
 import { backgroundBoxStyle } from "../cssStyles";
 import { BaseReactPlayerProps } from "react-player/base";
-import { AsyncThunkConfig } from "@reduxjs/toolkit/dist/createAsyncThunk";
 import { ErrorBox } from "@opencast/appkit";
 
 const VideoPlayers: React.FC<{
@@ -133,7 +131,16 @@ interface VideoPlayerProps {
   setPreviewTriggered: ActionCreatorWithPayload<boolean, string>,
   setClickTriggered: ActionCreatorWithPayload<boolean, string>,
   setJumpTriggered: ActionCreatorWithPayload<boolean, string>,
-  setCurrentlyAt: ActionCreatorWithPayload<number, string> | AsyncThunk<void, number, AsyncThunkConfig>,
+  setCurrentlyAt: ActionCreatorWithPayload<number, string> | AsyncThunk<void, number, {
+    state: RootState;
+    dispatch: AppDispatch;
+    extra?: unknown;
+    rejectValue?: unknown;
+    serializedErrorType?: unknown;
+    pendingMeta?: unknown;
+    fulfilledMeta?: unknown;
+    rejectedMeta?: unknown;
+  }>,
   setAspectRatio: ActionCreatorWithPayload<{ dataKey: number; } & { width: number, height: number; }, string>,
 }
 
diff --git a/src/main/WorkflowSelection.tsx b/src/main/WorkflowSelection.tsx
index 14d5922ad..fe8774e26 100644
--- a/src/main/WorkflowSelection.tsx
+++ b/src/main/WorkflowSelection.tsx
@@ -7,7 +7,7 @@ import { useAppDispatch, useAppSelector } from "../redux/store";
 import { selectWorkflows, setSelectedWorkflowIndex } from "../redux/videoSlice";
 
 import { PageButton } from "./Finish";
-import { LuChevronLeft, LuDatabase } from "react-icons/lu";
+import { LuChevronLeft } from "react-icons/lu";
 import { selectStatus as saveSelectStatus, selectError as saveSelectError } from "../redux/workflowPostSlice";
 import { httpRequestState, Workflow } from "../types";
 import { SaveButton } from "./Save";
@@ -135,7 +135,6 @@ const WorkflowSelection: React.FC = () => {
           </Trans>,
           false,
           <SaveButton
-            basicIcon={LuDatabase}
             isTransitionToEnd={true}
             text={t("workflowSelection.startProcessing-button")}
           />,
@@ -152,7 +151,6 @@ const WorkflowSelection: React.FC = () => {
           </div>,
           true,
           <SaveButton
-            basicIcon={LuDatabase}
             isTransitionToEnd={true}
             text={t("workflowSelection.startProcessing-button")}
           />,