Describe the bug
The title pretty much describes it. It started happening at version 0.4.80, or maybe the previous one but since the timeframe between releases was too short, I might not have noticed. When I connect to an open session over RDP, which I use daily, the Cairo taskbar placed on top of my screen starts flickering and eventually adds a margin..

I will use CSS to describe the problem. It's placed with "position: absolute, top: 0" under normal circumstances. When I connect to a running session, it starts to jump back and forth and alternating between "top: 0" and "top: 100px" (example). There already is a margin on top created for the jumping. It keeps on happening for a few seconds rapidly changing its position until it settles on top again but laving the margin-bottom: 100px.

This is a screenshot when it settles down:

The flickering happens like this:

Steps to reproduce

1. start a session, it does not matter whether over RDP or normally
2. disconnect
3. reconnect over RDP

Expected behavior
No margin and no flickering, no jumping on connection to a running session.

System information:

• Windows version: Windows 10 Home, version 20H2, build 19042.985
• Cairo version: 0.4.112.21595
• 32-bit or 64-bit: 64-bit
• In Cairo Settings > Advanced, is Cairo set as shell?: no

Additional context
It might also be a bug in the taskbar position, being placed on top rather than at the bottom.
EDIT: this is by default, I did not realize at first.

Screenshots
See above.