I copy .skp files to my Dropbox folder on my main computer (Mac OS X Monterey 12.2.1)
That syncs them to Dropbox “in the cloud”.
They show in a browser, with their proper file size - eg 6.7MB for one of my recent files. Other recent files don't work either.
On both my iPhone 12 and iPad Mini, when I view them in Chrome browser on dropbox.com and download to my phone or iPad, the downloaded file is only 833 bytes, and when I try to open it in SU Viewer (on phone), or SU beta app on iPad I get the message “Oh Deer” (sic) “this doesn’t appear to be a valid SketchUp file”.
Other file types (eg PDFs or image files) download and open properly on both iOS devices.
Any ideas on how to get this to work properly? Or even what’s causing this issue?