After installation with playonlinux, the game does not appear

I use Linux Mint 22 and have Rollercoaster Tycoon Deluxe from GOG. I could install it with playonlinux and right after installation, the game could can be started. So I did it and could play and even save games. But when I quit the game (or do not start it right away after installation), there is no entry in my list. Even if I do wine RCT.exe in the folder where it is installed to, it starts, but without sound. Only if I install it again and then start it, I can play. What can I do?