I (through code) place a bunch of frames inside of another frame which already has a UiGrid thing in it.
If this parent frame isn’t visible, the UIGrid thing doesn’t update properly. Once the parent frame becomes visible (on the screen) the UIGrid thing updates everything.
We have a bunch of fixes in the pipeline for the layout objects. I think maybe some even shipped tonight we can turn on soon. @Tiffblocks might know more
Do you have an rbxl I can try, or a public place where I can reproduce it easily? I think this bug will be fixed by one of the changes I made that should go live in about two weeks, and I’d like to make sure.