Hi,
I am having the same issue as this unresolved ticket from last year: https://forums.unrealengine.com/t/check-out-button-in-banner-not-working/833374
We have multiple depots on our perforce server, in one of our depots the pop up banner asking to check out files doesn’t work (see attached for a video) and Unreal doesn’t show the Check Out Selected dialogue box, meaning we have to manually check each file out each time. Our other depots don’t have this problem. Multiple users can reproduce the same issue in multiple projects in this depot.
Thanks.