Use Application/Browser 'Resize window' set to maximize glitches Citrix window

We have a Citrix application we’ve been automating in for years (we do not, and cannot install the UiPath plugin, it’s third party). From the beginning we’ve had a library with activities to handle login. Everything has worked fine for years.

In the last month we started seeing an issue where the Citrix windows glitch. The main window ends up fuzzy and maximized slightly larger than the desktop resolution. Menus and child windows are duplicated:

At the very end of one of the custom activities there’s a Use Application/Browser activity to attach to the window we want and output it as an object/variable. It was set to “Maximize” in the “Resize window” property.

I changed it to None and the problem goes away.