Introduction:
A corrupted cache can prevent your Microsoft Teams program from working correctly.
Outlooks Sync issues: Users unable to join Teams meetings from their Outlook calendar.
Spellcheck issues: Spellcheck not working.
Chat menu issues: Users unable to switch between chats in the left "Chat" menu.
Step 1: Press the Windows key + R to open the Run dialog box.
Type %AppData%\Microsoft\teams\ and press Enter.
Step 2: In the new window, delete everything within the following folders: Cache, blob_storage, databases, GPUCache, IndexedDB, and Local Storage.
Step 3: Restart Microsoft Teams and check if it now loads your chat messages.
Note: If you use the web version of Microsoft Teams, try clearing the web browser cache instead. Here’s how to clear the cache on all of the most popular browsers.