Good morning Robert and Jialin,
I have been experiencing the same problem and discussed this also directly with Jialin, since I was not able to find a solution. I have 10.14.6 version and tried uninstalling and reinstalling it multiple times. Initially I was also receiving an installation error, which seems to have disappeared now, by uninstalling the previous version first. But I still receive the play error message.
Perhaps it is totally unrelated, but in other computers, where it worked perfectly, I saw that together with this latest version there was also an authorisation key in the package content (despite the fact that in the release notes it’s said that it’s not needed). Could that be the issue?
I would appreciate any help or insight on this matter.
Thanks in advance,