I tried to reproduce this issue on my laptop but couldn't. Since I haven't upgraded to High Sierra yet, I also tested in a VM but still couldn't reproduce the issue.
Now, using a VM is far from perfect to test such things, but it would be great if this bug could be reproduced by someone else using similar hardware as you do.
BTW, (if there's a bug) I'm not sure it's the same bug as #1132; the symptoms look too different.
Thanks for your time
Laptop is "Pro Mid 2014" as I know.
Yeah, probably app will work fine on other configurations, but I made drawing black square just for sure
