So the ACE Pro is garbage, huh?

Received my Kobra 3 Combo today. Set it up and ran a 15 min Benchy. Not bad! Tried a multi-color print (the on board 4 color gyro). After printing each color once, it started giving clogging notifications. Hmm. Followed the instructions, reset, tried again. No dice.

After hours of tinkering, I landed on attempting to print a single color print with each of the four loaded colors. So far, I've only been able to get the machine to print using the (looking at the machine from the front) top and bottom left ports on the 4 to 1 combiner.

Does anyone have any suggestions?

All four slots are loaded with Overture Matte PLA. Printing at 230 C hotend.