Hoping to track down the root of my freeze-during-load/zoning issues documented http://www.gamesas.com/bgsforums/index.php?showtopic=1077751, I turned to TES4edit. I told it to load all esm/esp. For once I actually watched the load screen. Near the end of the load process I noticed several errors and warnings. They appear below...

[00:45] Background Loader: [GTAesgaard.esp] Building reference info.[00:46] Background Loader: Error: record ACRE contains unexpected (or out of order) subrecord XLOD 444F4C58[00:46] Background Loader: Errors were found in: [ACRE:1A00766D] (places A909FleshDemonFriendly "Abyss God" [CREA:00510A36] in GRUP Cell Visible Distant Children of [CELL:1A004056] (in A909Hell "Abyss" [WRLD:00510A32] at -1,-16))[00:46] Background Loader: Contained subrecords: NAME XLOD XSCL DATA [00:46] Background Loader: Error: record ACRE contains unexpected (or out of order) subrecord XLOD 444F4C58[00:46] Background Loader: Errors were found in: [ACRE:1A00766E] (places A909FleshDemonFriendly "Abyss God" [CREA:00510A36] in GRUP Cell Visible Distant Children of [CELL:1A004056] (in A909Hell "Abyss" [WRLD:00510A32] at -1,-16))[00:46] Background Loader: Contained subrecords: NAME XLOD XSCL DATA [00:46] Background Loader: Error: record ACRE contains unexpected (or out of order) subrecord XLOD 444F4C58[00:46] Background Loader: Errors were found in: [ACRE:1A0041A4] (places A909FleshDemonFriendly "Abyss God" [CREA:00510A36] in GRUP Cell Visible Distant Children of Gateout [CELL:1A004192] (in A909Hell "Abyss" [WRLD:00510A32] at -2,-14))[00:46] Background Loader: Contained subrecords: NAME XLOD XSCL DATA [00:46] Background Loader: Error: record ACRE contains unexpected (or out of order) subrecord XLOD 444F4C58[00:46] Background Loader: Errors were found in: [ACRE:1A00407E] (places A909FleshDemonFriendly "Abyss God" [CREA:00510A36] in GRUP Cell Visible Distant Children of Gateout [CELL:1A004192] (in A909Hell "Abyss" [WRLD:00510A32] at -2,-14))[00:46] Background Loader: Contained subrecords: NAME XLOD XSCL DATA [00:46] Background Loader: Error: record ACRE contains unexpected (or out of order) subrecord XLOD 444F4C58[00:46] Background Loader: Errors were found in: [ACRE:1A003DF9] (places A909FleshDemon "Abyss God" [CREA:00510A35] in GRUP Cell Temporary Children of [CELL:1A003DF2] (in A909Hell "Abyss" [WRLD:00510A32] at -4,10))[00:46] Background Loader: Contained subrecords: NAME XLOD XSCL DATA [00:46] Background Loader: Error: record ACRE contains unexpected (or out of order) subrecord XLOD 444F4C58[00:46] Background Loader: Errors were found in: [ACRE:1A003E2C] (places A909FleshMinotaur "Minotaur Titan " [CREA:1A00089B] in GRUP Cell Temporary Children of [CELL:1A003E1F] (in A909Hell "Abyss" [WRLD:00510A32] at -7,11))[00:46] Background Loader: Contained subrecords: NAME XLOD XSCL DATA [00:46] Background Loader: Error: record ACRE contains unexpected (or out of order) subrecord XLOD 444F4C58[00:46] Background Loader: Errors were found in: [ACRE:1A003E28] (places A909FleshDemon "Abyss God" [CREA:00510A35] in GRUP Cell Visible Distant Children of [CELL:1A003E27] (in A909Hell "Abyss" [WRLD:00510A32] at -6,11))[00:46] Background Loader: Contained subrecords: NAME XLOD XSCL DATA [00:46] Background Loader: Error: record ACRE contains unexpected (or out of order) subrecord XLOD 444F4C58[00:46] Background Loader: Errors were found in: [ACRE:1A003E2D] (places A909FleshDemon "Abyss God" [CREA:00510A35] in GRUP Cell Temporary Children of [CELL:1A003E27] (in A909Hell "Abyss" [WRLD:00510A32] at -6,11))[00:46] Background Loader: Contained subrecords: NAME XLOD XSCL DATA [00:53] Background Loader: [LostSpiresImpeREALFortsPatch2.esp] Building reference info.[00:53] Background Loader: 

I'm a total ignoramus when it comes to TES4edit (and much else) other than the steps needed to auto-clean esps (Remove "Identical to Master" Records, Undelete and Disable...). Is what I see any cause for concern?

Note that I finished GTA Aesgaard  long ago and have never visited it since (if that's even possible). So any errors that effect its created worldspace will not be noticed. Or does that matter?

I'm pretty sure Bartholm was cleaned. The LostSpiresREALForts2Patch2 (being a patch) would not have been.

Thanks!
-Decrepit												

I would suggest that GTAesgaard.esp contains a bit of corruption with some creature placements. Wouldn't have thought it would cause in-game trouble though.

For LostSpiresImpeREALFortsPatch2.esp and bartholm.esp, if I remember correctly, that warning means they contain orphaned records. Again I don't believe they'd have any negative impact in-game, but it should be safe to remove them from the ESPs. Expand the Worldspace section of those ESPs, and look for entries which are clearly not actual worldspace records. I don't recall the exact wording, but they'll be labelled as something like "Child Worldspace" and can be removed from the ESPs. The CS slips this data into ESPs when it shouldn't sometimes, I believe usually it happens if you're editing one ESP with another ESP loaded in the CS. Any worldspaces the other ESP edits get some of their records copied into the active ESP by mistake (even when you don't edit those worldspaces), but incorrectly. Remove them and those warnings will stop.

The GTA errors are safe to ignore. Somewhere along the way someone marked the creatures as having LOD in the CS, which tes4edit thinks is invalid.

The one for the bogus worldspace info will be marked as "World Children" and should be removed. If you're not comfortable with doing it in tes4edit, Wrye Bash has a function that will remove those in the right-click menu.

Thanks Arthmoor (and Display...)!
I have Wrye Bash installed, but rarely use its features. Didn't know about the World Children removal option. Worked like a charm. Simple too, even for an ignoramus like me.

-Decrepit