Oh, sorry, we had a misunderstanding. That script is written for two Warhammers on a single PC. That's why the script doesn't work.

The only thing that needs to be tested here is sending to Warhammer when it's in the background. That means a Warhammer window that's covered by another Warhammer window. You need two or more Warhammers on a single PC for that.

There's no need to test individual Warhammers on separate machines. That works fine.

If you want to help test this, you need to run both your accounts on a single PC. If you don't want to do that, no problem. Thanks for the time you spent on this.