I'm sorry, but this issue was experienced by the entire group of people who were trying to access the campaign, so I fail to see how any of these fixes could be the problem. It was experienced on four entirely different computers owned by people who don't even live in the same house. Half the party doesn't even live in the same state. I will work through the steps regardless of my own misgivings tomorrow when I have some time, I'm going to note now that I already tried Step 1: on my own computer last night . I have the same issue whether I try to load it in Firefox or Chrome. Usually I use Chrome. I'm not sure what the rest of my party uses or whether they tried other browsers. EDIT: Nevermind. I believe I've fixed it. This exact same campaign had done this before. The other mod turned off the dynamic lighting on the maps because it was causing whatever the loading issue was. I managed to get the game loaded enough to see that the dynamic lighting had been turned back on for several of the maps. I'm thinking perhaps an update that had recently been prompted for the campaign must have somehow turned it back on since I did not do so as my players like it better without the dynamic lighting. Regardless of how it got turned back on, the issue was resolved once I went through and turned it back off.