Jim,
I tested the rosetube at my home and it continued to work normally,
except when attempting to set:
Use youtube
to switch from off to on.
The following message then appeared:
Rose tube has stopped.
reopen the app.
RoseTube will continue to play.
I performed a restart and everything worked normally.
A second test with the Use YouTube function yielded the same problem
but did not require a restart.
RoseTube worked again.
There is indeed a problem with Use YouTube.
I have not changed the YouTube setting and left it off.
A test with YouTube also works normally.
I hope that it can help you.