User Interface is not responding

Good day

I updated to the new v5.4 today and everything went smoothly. I did some work on a workflow and when I wanted to save I got the error “An unresponsive user interface has been detected”. It does this for all of my workflows.

I have the options “Save and restart” and “Wait for the UI to respond”. Using the latter doesn’t work as the error appears a few seconds later. I tried “Save and restart” now and upon loading another workflow the error appears again.

Any idea what could be causing this? Is there perhaps a way to rollback the update or revalidate the knime system files?