c3Kitematic buttons (STOP, RESTART, EXEC) unresponsive

Anyone have experience debugging unresponsive STOP, RESTART, and EXEC buttons in c3Kitematic (e.g. I click them, but nothing happens).

It happens inconsistently, and it’s worst with the EXEC button (STOP usually ends up working after I hold it or click a few times).

Have tried restarting Docker/c3Kitematic/computer, but I’m wondering if there’s a better way to solve the actual problem?

– N