Product and version: FileMaker Pro Advanced 15.0.1
OS and version: Mac OS 10.11.5
Hardware: tried it on different computers, same result
Description: There is a refresh problem (that wasn't around in FMP 14 and earlier) when entering a layout in List View and a script is triggered with the script step "Refresh Window [ ] . Somehow the Header isn't refreshed at the same time as the rest of the layout. So one sees a kind of flicker.
How to replicate: Just take one of the templates (added the Assets file as an example) and change the script that triggers when entering List view. It can be either the one for OnRecordLoad or OnLayoutEnter. I changed the "Trigger | Sort Assets List [Get Script Parameter]" script. Just add the script step "Refresh Window [ ]" and that's it. To make the behavior more visible(!), I added a loop after the refresh script step. The loop has nothing to do with the problem(!). Whenever the refresh step is disabled (also with the loop), the problem is gone.