I noticed some issues with the viewer when clicking to go full screen , but only here in the forum embeds. The viewer on the regular sketchfab model page does not have any problems.
Ive seen two thing happen now, first on the forum post concerning the public release on animations , when I clicked the embedded viewer to go full screen , it launched a new popup window , with a strange starting width and height and did not stop the current embedded from being active. In the new popup window had to click play to load it again and it could not be made to be full screen ( borderless ) from this popups full screen button.
The second issue I just have happen was now when viewing the thread of the death of Jar Jar for the SWC , The last embedded viewer for the final entry , when I clicked it to go full screen , the screen flashed for a bit and then the embedded viewer vanished. So it didnt go full screen and there was just a white space where the embedded viewer used to be
Im using desktop chrome browser windows 10 - 64 bit