Steps to reproduce: 1) Connect to machine A (RDP) - Current KRDC size 2) Connect to machine B (RDP) - Current KRDC size !! The size is bigger since it does not take in account the tab space on the top
Just want to add, using Kubuntu 18.04 with KRDC 17.12.3. This is an annoyance that I run into everyday. Simply having an option to always show the tab bar, I think, would solve this. Having no tab bar for 1 connection makes sense, until you add another connection and your first connection is now the wrong size. I get around this by connecting to 1 system I don't need to connect to first. Then opening additional connections to systems I do need. Once I have at least 3 open, I close the first connection. This lets all connections after the first one be sized appropriately for having the tab bar displayed.
Wanted to update that I noticed a setting that helps with this. I enabled the "Always show tab bar" in the configuration of KRDC and that fixes the problem. Kubuntu 20.04.3 KDE Plasma 5.18.5 KRDC 19.12.3 I have not installed any special versions of KRDC, using just what the Kubuntu repo has.