Open a saved Dimension file, make edits and then unable to undo edits.

CMND + Z and going to the dropdown menu won't revert the changes. This only happens in saved files, when I make a new document I'm able to undo changes but if I save > close > open for editing the undo function doesn't work.

If I try to save a model into one of my own Creative Cloud Libraries the synchronization fails every time. The library 'exists' on the local machine, and is available / restores each time I run, but they do not sync between machines. I basically have two different libraries on two different machines.

Open Adobe Dimension, click Help, Provide Feedback - the Feedback website opens; however, most of all of the menu items under each of the menus - File, Help...etc. are now greyed out and you must Quit Dimension and Restart in order to access menus like Import, What's New, Provide Feedback, Check for update...etc.

when i use the dolly tool to zoom in, it cuts the objects in the lower half of the screen, it wasn't like that when i started this scene. how can i fix it so it will show the complete objects?

I am not getting any objects to appear in my scene panel, I have two custom 3D Models as well as two stock models in the scene. All are visible, editable and rendering in the preview window. However when I go to render there is no option to assuming because there are no objects being recognized for some reason. I have attached screenshots below. Not sure what is going on here.