Can't expand and collapse any collection in outliner in Blender 2.81

Hi! Tell me please I update Blender to 2.81 and there is problem with my old keymap. Keymap I made and successfully used in 2.80 blender not working exactly as I expect in 2.81. The first problem I noticed is that there is no way to expand and collapse any collection in outliner. I press left click on plus button in outliner and nothing happens. Who knows what cammand does expand and collaps collection in outliner? how can I change it? or fix the problem with this command in 2.81?
Thanx

I find the solution, who have the same issue after update just change this (screenshot

attached)

Hi, I’m having the same issue (can’t expand or collapse items in the outliner) but the above fix doesn’t work for me.

Any ideas what I’ve done? I probably mis-keyed a shortcut that locks the outliner maybe???

Cheers

Oh, don’t worry, stupid mistake; I had a word up in the search bar so it was locked on showing me the search results… my bad