I have personally not experienced this, though I have seen it mentioned in the Live Help chat. I believe closing your browser and restarting it should help, if not, try rebooting your computer.
Yep, I experienced this consistently on all browsers on one laptop and using Chrome on another; either loading stopped at the 'unpacking' stage and it never got any further or I'd get into an empty world with no interactive objects or inventory. It stopped following a forced reboot during the test before last (rooks test maybe?) and, as well as it seeming less laggy on the one laptop, I was able to play it on the other one too.
Last night I started having the same problems and reported them. Decided to clear cache and restart browser and now I'm having the same issues all over again...
I'm having the same problem. It started for me after I went to a project (about 5 PM PDT Thursday July 14). I made one crystal & froze. Reloaded the game but Chrome would only get as far as unpacking then hung at 96%. I tried two other browsers -- Safari and FireFox 4.0 -- AFTER I cleared cache & cookies on all browsers, did a complete scan (which includes defrag), and rebooted my computer and DSL modem. Chrome wouldn't work at all (hung at 96% unpacking) except once this morning. No inventory however. I could get in with Safari & FF but I did not have any inventory. This continues after TS rebooted the servers this morning.
This issue started for me today, as well as painfully long loading times that timeout once every time. Firefox, Chrome, and IE all with the same result, even after cache-clearing, rebooting, and re-installing Flash. Sadface.