SBpro program freezes/becomes unresponsive occasionally when I import sound files

This has happened in both SBP 20.1 and 22: Occasionally, the program will freeze/become unresponsive to most commands immediately after I have imported a sound file into an audio track on the timeline. It can be any sound file and it does not happen most of the time, just occasionally. It does tend to happen more with clips of longer duration rather than shorter, but it can happen with shorter clips as well. Also, if I am in the timeline and have selected “import sound file” and I am interrupted so that some time passes while the selection window is open prior to actually selecting/importing a clip, then SBpro program will freeze/become unresponsive.