WordPress Menu not saved after clicking save button

please provide the report number

you can get it in toolbox -> report -> click “send to LiteSpeed”

Done :

Report number: GSQEJPYB

Report date: 09/02/2024 09:31:40

please try disable object cache, purge all , edit it again , see how it goes

Hello,

Yes this is working but should I keep object cache always Off.

What is the impact on cache performance?

I guess you will have to keep it off , or at least disable it when you need to edit the menu

what would I loose if letting it off.

object cache , it stores some re-usable object into memory , then let it for faster retrieve