Went back to 01-05 1304.
Priority works for me with the higher values in this version. There are a few occasions where it does not interrupt. I observed far more issues with Version 1329 not interrupting. Just an FYI. Thanks.
I'm using 2020-11-06 1342... sorry if I gave you some bum info. If it makes you feel better, I'm not getting any interrupt on this version with the higher values. I'll try moving up to a newer config.