The Bring Forward, Send Back Backward in Gallery Doesn't work for text boxes and labels in a Gallery (and perhaps beyond)
...But it used to.
The only workaround I see is having to delete controls and readd them in a particular order, which is something we are not going to be able to do.
Note - disabling Modern Rendering, saving, closing rand re-opening resolved this issue for me ongoing.
@Anonymous If you are unable to select a control in a gallery or add a new control to it, does it work if you select a different screen on the tree view in the left sidebar and then select the original screen in the left sidebar?