Right after I click "Play" this alert pops up:

"An error occurred while updating Bridge Construction Portal (unknown error)"

There are some security updates in Catalina, you may need to set up permissions of app, or move some files, I don't know much about OSX desktop apps. I mean, "you", the developers.

Maybe it is an issue on my side, I don't know. The last update was before Catalina, so it can be a bug in your product.