Weird bug in desktop and everywhere

When I bulk select something by mouse, the selection area doesn’t go away. But it doesn’t happen everytime. See the screenshot, selection area persists.

Is this just selecting stuff over the desktop?

In this case - the desktop is managed by nemo - so this will be a bug for GitHub - linuxmint/nemo: File browser for Cinnamon

no, i faced in file manager too.

the default file-manager is also nemo

I tried restarting nemo, but no luck. is there any workaround? and this bug was not present in ub 20.04, it occurs after I installed ub 22.04.

sounds like a bug that needs to be first reported then triaged by the maintainers - if necessary fixed. Then it can be backported into 22.04