Flickering issues on bottom of library

I have no idea why but the bottom of the library is constantly flickering on and off.  Sometimes it stops then it will start again.  Only thing I have done is upgraded my MacBook OS to Sequoia.   Started about 2 weeks ago.  Does it on the laptop with no controller connected or when connected.  Never had an issue with Rekordbox before until now.  Very frustrating.  This laptop has an i9 processor with 64gig of memory and a 1TB drive.  All music on loaded on the laptop.  No external.