Snaps recently installed will not run

I’ve installed four snaps recently, Pin-Town, which works fine from ‘Games’ menu and the cli, Play0AD which although a menu item was made it works from neither that or the clie, Solitaire and Freecell-Solitaire neither of which work from the menu or cli. Snaps I’ve installed previously still work from either.

Not sure what’s going on. The version of core is
core 16-2 1906 canonical

For the 0AD snap, you need to connect the process-control interface for now (this requirement will soon go away). In a terminal, type the following:

snap connect play0ad:process-control :process-control

Please let me know if it still doesn’t work after that.

Thanks Olivier, that did the trick. Appreciate the help