Adding a few MsgBox lines to your script can accomplish this in a few minutes. You can add a line to detect hidden windows. Tried, there are some windows with id but non-existent wintitle. Not sure if that's the issue... Same deal with the other script I tried (https://www.autohotkey.com/boards/vie...

Although I have never used Minecraft, I did open it today for the first time to test this, and was unable to reproduce your issue. Perhaps others here on the forum will have more ideas, as Minecraft is so widely used among forum readers. You could try running the script in admin mode; I do not know...