Utilizing a small dataset (143 docs at roughly 1MB in size and attached), I attempt to run Analyze Schema in Compass 1.19.6.  It appears to timeout and nothing happens.  However, when displaying the console in debug, it appears to simply continuously sample and never end.  The schema contains several Array fields with embedded documents.  None of the Arrays are more than 10 elements deep.  In prior versions of Compass, although it was the operation was quite slow with the same dataset, it would sample to completion in a reasonable amount of time.