Software 8.64 - Smart notifications not working

My Instinct 2S Solar was recently updated to firmware version 8.64 and I noticed that the phone notifications do not appear on the watch anymore. Everything worked as intended before the update.

The watch and phone were restarted multiple times and all notification toggles were set to "on" on the CIQ app. Do not disturbed was also set to "off" on the watch.

Does anybody else have observed this issue? Is there a plan to address it?

Thanks a lot for the support!