Weird thing what happened in Timbers' last game. The AI benched my active K and substituted him with an LT. There was no injury and the K was replaced before the kick-off. I think that cost me a possible win
Did anybody see anything like this before?

Sorry but I have to ask, are you sure you didn't just click something by accident? I have seen LT do kicking before but it's usually when a team has no actual kicker on the roster. The AI shouldn't be doing stuff like that, so I would suggest posting this in the general chat everyone sees and/or the Bug Box. If you had no erroneous clicks on your end then I would assume it's some kind of bug in the program.