Open any page with a model.
Click on the model’s name to collapse its fields, conditions and actions. (works)
Click on the model’s name again to expand it. (fails… nothing happens).
If you happen to have another model on the page, and click on that, and click back to your first model, it will expand as expected.
Yes. We have reproduced this bug and Ben spent a good while smoothing out the model selection interactions. This should be corrected in Banzai Update 1 - which is available on the skuid releases page.