workaround on linux (if the cause is a renamed Appimage after update) ( /home/user/mybin is in my path and is the current directory )
ln -s cursor-0.40.4-build-2409052yfcjagw2-x86_64.AppImage cursor
this was my initial setup, on update cursor seemed to “delete itself” but actually just “renamed itself” resulting in
cursor .
failing to start.
Relinking to the newly-named AppImage in the directory seems obvious but does not seem to work in my case (the symbolic link remains red). I chalk it up to random linux behavior and remove the cursor symbolic link.
rm /home/user/mybin/cursor
ln -s cursor-0.41.1-build-2409189xe3envg5-x86_64.AppImage cursor
this solved the issue in my case