first of all, congrats for the new UI. It seems you wanted to make it look more professional and more efficient.
while in generall you achieved that there are some things that are - excuse me - terrible for the workflow.
I will need to revert to an earlier version unless this is changed again.
you have added a viewport manager that replaces the manager with the previews.
firstly it is extremely unefficient and unintuitive to not have the previews anymore. really the workflow was: going quickly through the previews and changing the view. now having only the names it is difficult to remember all views.
secondly for some reason changing the view always has as a cosequence the view is exported from revit again. so you dont have the flight to the position we used to have. which in my case costs like 30 (!!!!) seconds every time. honestly, this kills the workflow. i now have to change the view position manualy which is of course inacurate.
I think you did this to have the view tied to the revit settings. but this is really a deterioration.
still, if i have overseen something or i am missing any information, i will be glad to have you correct me. because this is about my work efficiency.