When I attempt to log into a character who camped out in the Dark Moon Faire, the game hangs completely. The progress bar fills, but the character never enters the world. I have to kill the game from the window menu or the task manager.

If I disable AllTheThings, I can log in every time.
If I disable every mod except AllTheThings, I can sometimes log in.
AllTheThings + DataStore appears to be a fatal combination.

I am able to load directly into the DMF with ATT and DataStore active. Since DS has a bunch of submodules, it may be one of those causing the incompatibility. I'll see if I can get a freeze using any of the submodules as well...

Hmmm... none of those seemed to do the trick. Perhaps there's some other condition present to cause the issue?

Can you replicate the issue still on the latest ATT version (2.2.6) and post more information about your enabled Addons and character information (faction/race/level/etc.) since there must be some very specific conflict?

Now that the faire is going again, it is easier to test.
I do have the latest version (2.2.6).

I tried logging into a low level shaman character and the game crashed on login.
My normal set of UI mods includes Altoholic, Bagnon, Datastore, Dominos, Titan Panel, and Z-Perl.

I disabled all mods except for AllTheThings and the game crashed. (This has been my experience. I occasionally can log in with just AllTheThings, but more often than not that mod alone will hang the game.)

I then disabled AllTheThings and was able to log in. (This has also been my experience

I tried enabling just AllTheThings, BugSack, and BugGrabber, which did crash, but apparently the crash happens before the bug catchers start up, because nothing was caught.

I just tried re-enabling everything. Now the game is hanging eternally on a full progress bar.

Random other facts:
I have something like 40 characters and they all have trade skills, so there is a lot of data associated with this account.
I usually log out on the carousel, which may do something weird on login.
The ATT data file is ~4MB and has 260K lines.
Memory footprint with no UI mods: ~2.2 GB once the game is fully loaded
Memory footprint with only ATT: ~2.5 GB just before it crashes

My working hypothesis is that ATT is asking for more memory, not getting it, and crashing hard.

That would also explain why the addition of other mods causes it to fail more often, particularly memory-hungry mods like DataStore.

Try latest 2.2.8.

Heisenbug. I will let you know if it returns. It occurred to me that it may be reproducible with the SavedVariables file.

I am able to log into the faire now. Thank you!

Weird. Glad it seems to be better now, whatever changed :)