Steam Ice 3 Can't Be Uncoupled

We need to spread the word.
The uncouple button does not work on the ICE 3. Fortunately AI ICE 3 do uncouple but duh, that's not interesting, I wanna do it myself.
As a side note, more services with ICE coupling would be very nice too, but that's not troubleshooting, but just so I had it mentioned.

 

Same problem here, apparently, this is a bug that is also included in the TSW6 default route.

 

What default route? TSW6's first bundle of routes did not come with an ICE 3. Also, uncoupling IS possible, but in a weird way; move the brake handle into the rapid succession position and then use the uncouple push-button. From what I remember, atleast.

 

I meant the Ice T DB 411. I found the coupling solution on Reddit, and is as you stated.