Thanks again for a timely heads-up, Larry!

The Cakewalk alert indicates that the issue may go beyond Sonar crashes and may affect other DAWS using the listed CW plugins (CA-2A, Rapture Pro, Rapture Session, Z3TA+2)...so maybe BB and RB. Comments following the alert indicate that the issue may affect non-Cakewalk plugins, too. Seems to be less a Cakewalk issue than a Windows 10 update issue. I received a Win10 update yesterday. No problems yet, but also minimal usage.

Folks looking after each other in these PG Music forums...the best!