Just a friendly request - please do not ping the team - just because your topic remains unsolved - it is bad behavior and therefore considered rude.
If an application doesn’t work as expected - you take it to the developer(s) - in this case
Try deleting the folder ~/.config/flowblade and restart the app
If your topic remains - there is no one which knows the answer or have any solution.
99% of the packages in Manjaro repo is imported from Arch repo - and their presence is not a sign of endorsement or recommendation nor is it a sign of quality.