Upgraded from F31 to F32 and applications icons disappeared of menu

I am using LXDE.
I’ve upgraded from Fedora 31 to Fedora 32 using dnf system-upgrade plugin.
Once it has restarted, the applications icons disappeared of menu.

I can see everything is fine on local/share/applications.
What can solve it ?

To start with, can you please create a new user and see if the issue persist there?

Also, do you mean ~/.local/share/applications or /usr/share/applications?

I mean both of them.

Can you try this please?

Suddenly, after a kernel update, all icons is appearing correctly now.
Thank you anyway