Unable to load shared games

My account currently contains 8 games and I am unable to successfully open 5 of them. The ones that will not load begin as normal but freeze at the second pithy random statement (hatching dragons, reading core rule books, etc).  Sometimes they load as far as just five of the menu items (select arrow, freehand paintbrush, magnifying glass, ruler, dice roller, help ?), and sometimes they load all nine and the page toolbar tab at the top (but none of the pages are available - the field is blank).  They never load the page or my avatar.   My last full access was around 12pm Pacific Time (7/29/21) when I had no problems.  When I signed back in at 5pm some of the games would not load; over the course of the next two hours I lost access to others. I have tried restarting my computer, changing internet servers, changing browsers ( chrome and firefox ), and clearing my cookies/cache.  I have tried sending myself a player invitation to a new email.  I have tried having a Co-DM in one of the games deleting and re-inviting me.  None of this has helped. Players in one of the games I was unable to load reported lag on character sheets and missing token macros (although these may have been lost when I was removed from the game, since I wrote them as Co-DM).        I happened to have a chat archive window open prior to trying to load the game - I am able to navigate the pages in this successfully, but when I copy/paste the address and delete down to the game I have the same issues described above.

Have you tried connecting in a private browsing window, to eliminate most possible extension conflicts? Are you connecting from a country with a national "firewall", ex: China? Which browsers have you tried? Only Chrome and Firefox have official support. If none of this helps, your best bet is likely to gather up a Console Log ( Chrome ,  Firefox ) from the time you are connecting, and use it in a  Help Center Request .

In my sessions I had a player who consistantly had this problem and we discovered it was because the player ribbon was on a page with advanced fog of war/LDL enabled and he was using a third party extensions and apparently they have some weird AFOW interaction.  The second he disabled the extensions he loaded in perfectly.  

DM Eddie said: In my sessions I had a player who consistantly had this problem and we discovered it was because the player ribbon was on a page with advanced fog of war/LDL enabled and he was using a third party extensions and apparently they have some weird AFOW interaction.  The second he disabled the extensions he loaded in perfectly.   I'm not using third party extensions, but I will ask the co-GM to move the page ribbon and see if that helps.  However, there are some games that won't load on which I am the sole GM and thus can't move the page ribbon.

keithcurtis said: Have you tried connecting in a private browsing window, to eliminate most possible extension conflicts? Are you connecting from a country with a national "firewall", ex: China? Which browsers have you tried? Only Chrome and Firefox have official support. If none of this helps, your best bet is likely to gather up a Console Log ( Chrome ,  Firefox ) from the time you are connecting, and use it in a  Help Center Request . I am connecting from the US but with the internet of my employer (who is also my landlord).  I have reached out to see whether there were any changes in the firewall yesterday.   I tried Chrome and Firefox.

It seems like it was a combination of firewall and dynamic lighting.  Once my employer put Roll20 on the firewall safelist a few of the games loaded correctly, and the others did so when I switched off the dynamic lighting on the landing page.  Thank you keithcurtis and DM Eddie for the help.