using 4.0.3 nightly snapshot from 4 nights ago Can upload an office document, png, etc...all seem to work fine.. except:
the document is not visible. to make the document become visible, have to have the browser push reload or push f5. this is all users in the room. after the user reloads the page and essentially re-enters the room , document, png, etc all appear fine. this is centos 6.9 client server in chromium 63 -Dave