Although having set "FILE_OPEN PREVIEW DEFAULT COLLAPSED", the program after a while automatically re-proposes the preview window in the file open window.
Looking at the behavior of the program, it seems that it is interfering with the appearance of the model preview pop-up in the model tree.
Try this test procedure: 1- I close the preview in the open window for the umpteenth time. 2- Until I see a model preview popup in the model tree, the preview in the open window does not appear again, if I display a preview popup in the tree, the preview reappears in the open window ...
That's it, I have encountered this behavior in both Creo 2.0 M250 and Creo 184.108.40.206.