I developed a model in 2.2, then realized it was 2.2 when it was time to create a VRF system. I changed it to 2.3, made some edits and continued on with my ECMs. I'm now running into a problem where one of my unconditioned zones with a system type "SUM" is providing an output error reading "Unconditioned Zone has no master zones" and BEPU/BEPS reports dont generate.

When I delete the unconditioned zone, there are no BDL errors but i get stuck on 74% with no messages.

Any tips/advice? Has anyone run into something like this before? Seems to be an error from transitioning 2.2 to 2.3 but its not saying that outright.