Sketch has all kinds of issues in Windows and Android.
I don't use it, ut many do.
John M
I have 11.1.1 on my Windows 7 PC. No issues with sketch that I can see.
I had 11.0.74 on my Samsung S7 Android phone -- tested sketch with that version. No probs. Upgraded to 11.1.1. No probs.
What precedes your lockup?
I haven't used the sketch feature except for testing, but I tried it the other day when I first saw this and it did end up locking up my program on a Win10 desktop. I'm not sure what I did to get to that state, but I haven't been able to do it again.
Mike, What version are you running?
I thought I would try Sketch for Win 10 ver 11.0.74
When I try 'Map Mode' then click 'Sketch' button, iFly bombs out by closing, but...
When clicking 'Menu' then 'Sketches' it works. I only tied two functions so far, but it worked.