Release notes stops Canax hourly

I have the free version running on a Huawei P20 pro playing hourly chimes perfectly untill a new update is automatically installed and then it stops working. Once I notice and close the release notes it resumes working

I’ve discovered that in fact the hourly chime was working but it had changed from my custom sound to a default sound. There were some permissions that had to be re-allowed for it to resume. It looks like the release notes no longer causes it to stop playing the hourly chime.

Do you mean that Google Play “New app version” available notice?