Ok. so I did a full reinstall of FS2024 and that did the trick.
FYI: Not only hit uninstall in Steam, but also removing the whole folder of FS2024 in the Roaming dir of AppData. Reinstalled the plugins again, everything works as expected immediately.
Only using the Steam uninstall button, did not fix it, I had to explicitly remove the whole roaming folder and reinstall the sim completely.
Thanks for the support!