i just found the link to enable Beta Testing (thank you by the way) and Beta Thread and starting using the app.
So far it is working good for me, however I have 3 Bugs (Android 12, Samsung S10e):
1) Widget stays the "old design" no matter what UI i pick. I guess this is a bug. Can you please also add transparent percentage option?
2) Album Arts:
a) Some Album Arts (5 out of 800) are not displayed correctly in the App (however are displayed by other Apps including MM Desktop App).
b) When this songs are played, the album art default picture is not shown in the "playing line" at the buttom but it still shows album art from the last song (that had an album art). The Icon in the Notification Bar is "the default album art picture".
3) (maybe i did not find the option): The Lockscreen widget only shows up when "all lines are showed" --> my guess: priority is too low.
and 2 Feedbacks/Questions:
4) Overall functionality looks good, but the UI is still "not really 21th century" to me. Only BlueWhite is working for my eyes and it still looks like something from the 90th

5) It says update to MM5 before sync. Is MM4 not working or is there a risk to brake anything?
Thank you,
Linkin