Could you provide some screenshots or perhaps a recording of your screen?
Also, you could try to use the included RobotStudio Support tool to get access to logs, to see if there are some errors in them that could help troubleshooting this issue.
The screenshot is not of the controller, but the Virtual FlexPendant
You can find the latest RW versions via RS → Addins → Choose RobotWare link just below the search box → Choose the relevant version in the drop down to the right.
We see the same problem using robotstudio 2019 in a VDI (using Citrix XenDesktops) with robotware 6.10
The problem for us is that we use Citrix Profile Manager for roaming profiles. This system (as many other profile accelerators), use profile streaming to speedup logon times. So profile file data are only streamed when each file is used.
Well, in %LOCALAPPDATA% folder of the user there is a folder that is %LOCALAPPDATA%\ABB\RobotWare\RobotWare_6.10.1039\vcbin with many dlls. It seems that flexpedant doesn’t like the profile streaming. So if we select all .dll files in this folder and check property details (using rigth mouse button), the next invocation of flexpedant shows the rigth and not the blank screen.
We can resolve this using citrix GPO to force this files to be “always on cache”, but with other streaming profile systems the solution can be other. For sure RobotStudio developers can bypass this problem changing the way thar flexpedant use to load the dlls, because we didn’t see this problem with any other application with dlls in the profile.