Mate can't find Wine or run Gparted

Support & Help Requests
1

Ubuntu 20.04.1 on a Quad core ASUS/AMD 64-bit machine. Have used Mate for 2 months and have found these problems:

  1. Although Gparted is installed, and shows in Mates program lists, when I click on it, Gparted asks for authentication which I give it, but then it never opens the program. If I switch to Unity desktop, then it opens fine.

  2. I followed instructions to install Wine, but it doesn't show up in Mate. It's not buried or on a different desktop either. Term shows it, but I want to launch it from Mate, not term.

How do I get these programs that worked fine with Mate in 18.04 to show up in Mate for 20.04?

Thanks!