I am running InfoQube IM v1.127.0Pre2, but this problem has occurred for more than a year and on multiple computers, although fairly infrequently. I have yet to discover a pattern or figure out a way to reproduce it. Perhaps it's worth reporting it now.

Bug: I select and copy some text within IQ, but the text will not paste when I attempt a paste operation, either within IQ or within any other Windows app. Copy and paste will thereafter not work within IQ or within other Windows apps, until I close IQ. After I close IQ, copy/paste begins working again within all other Windows apps, and also within IQ after I restart IQ.

I'll continue to look for a pattern.