Error -20021

[Frank Kruse]

We're seeing a lot of errors -20021 in combination with automation too dense messages. After a auto too dense message occurs and you hit play the next time a -20021 (undocumented on the AVID website but according to support plugin related). After -20021 popped up the only way to get PT to play again is to close and re-open the session. I've seen thse a lot a year ago on a complex Atmos mix in combination with a crashing RMU but this is 5.1 and not even yet hit the mixing stage.
Very often this happens after writing AVID Channel-Strip automation. Needless to say that automation isn't dense at all. 99.9% is static EQs across B/Gs or dialogue with ruler-flat automation in edit-session that have not been mixed yet.

We get this on a least 6 different rigs with different session setups and different locations with no apparent thing in common with regards to plugins.

I sent a bunch of log files to support but things went quiet after a while.

Anyone having the same issue?

Thanks

Frank.