Not sure if you are aware ut when scanning a large amount of files for bpm & key, Lexicon seems too give me either a black screen or the analysing icon not moving after doin maybe 1500-4000 files. I can’t give an exact number as it happens at a different point each time.
This is most likely due to the key analysis. It uses too much memory at the moment that can cause a crash (blank screen). It’s something I really need to improve.
If you analyse without key, it should not happen.
I have had this before and using ‘Cleanup’ in the tools menu worked for me, the next run on the same files completed without crashing