Mendix 9.6.0 has significant performance issues with larger projects. As Juan mentioned I logged a support ticket with Mendix with a video and sample project on how to reproduce this. They sent it to their R&D teams for review but no feedback yet. However it’s unusable for me. It appears as if the error checking is interfering with the rest of the actions. And in our case error checking takes very long due to the size of the project. Most actions that occur during this error checking (that’s supposed to be in the background) freezes up the entire Studio Pro until the error checking completes. Even the error checking progress bar freezes up.
Could you please try it with 9.6.1 released today? We’ve identified an unfortunate issue in 9.6.0 that should be fixed in 9.6.1.
Sorry for inconvenience! :(