I previously encountered this before but it seemed to be random. Now that I see what causes it I probably just had a navigation sequence that was not typical so it appeared to be random. Now with a new UI structure I can reproduce the problem every time.
Previous “tinkerings” with the segmented button to isolate the problem seemed to show it was related to size or position but nothing was consistent.
I have tried it on my Linux server and the results are the same so it appears to not be platform specific.