It was odd for sure. After connecting and disconnecting the swather, it refused to turn right for my friend. For me it got jumpy and shakey. No problems on single player. Was on Montana 4X and with the swathing + mod on too.
Hm. Also have the mobile workshop mod as well for the resetting. As for recreation. It was on 4x Montana. The long drive was from the lower left corner to the top right. I think it was our first field and happened with every move. Ended up just using the straps. Hmm. The only other mowing mods we have are real mower and communal services. If you still can't recreate, could share a discord screen?