RELMA item description viewer gets stuck in Simple Display

RELMA version 6.22, build 7878 on Windows 10

Error details: In RELMA, search for any term name, e.g. “potassium” and switch to tree view. Under the details columns, click on any LP code hyperlink “details”. The part details will appear in a new window. Next, keeping that new window open, click on a LOINC item. It shows the Simple Display. If you then switch to Comprehensive Display from the drop down menu at the bottom, it doesn’t work; it remains in Simple Display. If you now switch back to Simple Display and again to Comprehensive Display a second time, the Comprehensive Display shows.

I don’t know if this is a new problem or if it occurs on other PC’s.