I too have same issue with Power BI mobile app (android) , I placed slicer in report and added relevant Tile to dashboard, but while navigating from Tile to report, No slicer is visible and reports showing all data without any filter.
please provide the fix soon.
It looks like the dropdown slicer now works properly. But I've other issue that I'm facing in PBI desktop too. When I collapse the menu, then I can't hide them.. see image below. The alternative is close and open the program/app again.
In iPhone and Power BI desktop the issue collapsing the menu is solved, on the other hand, this issue remains in Windows app ( app in windows 10 from store), I can't hide the items.. see image above (example). The alternative is closing and open the app again.