Same here. I'm using icedove only for calendar management with iceowl. To access google calendar I'm using calendar-google-provider.
After upgrade to 45.2.0-4+b1 calendar stopped working. I got authentication error messages in console. To update OAuth2 authentication credentials I removed old credentials. Now icedove shows empty window there it asked in the past e-mail and password to access google calendar. I get activity log for all modules, but it's 30M. NSPR_LOG_MODULES=all:5 NSPR_LOG_FILE=~/icedove-activity.log icedove -- Best regards, Andrey Skvortsov
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