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.