Previous Mojave guest OS does not come up on update to latest Parallels desktop 15.1.3 (47255)

I have Mojave guest OS (10.14.6) which was working fine until I updated to latest Parallels desktop version 15.1.3 (47255). Now it just gives black screen. Any ideas on resolving this ?

 

@HalR Hi, It seems like frozen, please refer to this KB article https://kb.parallels.com/123094 in order to reset the frozen virtual machine and check how it works.

 

Reset worked fine. Thanks!

 

You are welcome. Please feel free to reach us for further queries.