Keyboard shortcut for magnus magnifying app in ubuntu budgie has stopped working

Hello sir, i have uninstalled magnus magnifing app and now i have reinstalled it. But the shortcut is not working now. Also the window size of magnus app can not be resized to its original size. How can i fix this ?
Thanks.

After installation you need to logout and login before the ALT+Super+8 toggles magnus.

It looks like you have found a bug with magnus - please report this to https://github.com/stuartlangridge/magnus - lets get this fixed properly and then we can get the fix pushed out officially to 20.04 users.

After reporting you can do a reset by:

rm ~/.cache/magnus.json

oh i forget to remove the cache of magnus.json and that’s why i was not able to resize the screen. Now it is working.
Thnaks.