Version 4.4.9
All new saved transmogs result in hidden shoulders, belts, and gloves when applied.

Version 4.6.3
Similar problem with some of my characters. Shoulders and feet transmogs are set to hidden when applying a saved outfit to my warrrior. Same problem but only with belt on my rogue. Transmogs on other characters working correctly (so far).

I have the same issue. Usually with chest pieces. It's been for a number of versions but still persists in 4.6.3

I've been trying to figure this out and have not been able to get the issue to appear for me. Can you check that the option to hide specific items hasn't been enabled some how. From the transmog vendor click on the little helm icon to the right of the save button.

I've been trying to figure this out and have not been able to get the issue to appear for me. Can you check that the option to hide specific items hasn't been enabled some how. From the transmog vendor click on the little helm icon to the right of the save button.

I've just checked and that's not causing the problem for me, sorry. Even then, if it was that would just raise further questions because I've never engaged with the "hide item slot" feature before anyway.

Is it worth noting that in the shoulder slot (and presumably feet, but they're too low to see) still shows on the saved outfit preview?

Here's some pieces I know offhand won't apply from a saved mog

Black Valdrakken Pants
Bronze Valdrakken Jacket
Pauldrens of Winged Triumph (Raid Finder Color)
Legplates of Unthinking Strife

Those are some I know offhand won't apply from a saved mog.

I've been trying to figure this out and have not been able to get the issue to appear for me. Can you check that the option to hide specific items hasn't been enabled some how. From the transmog vendor click on the little helm icon to the right of the save button.

I can confirm that I don't have any of the slots that are being hidden set to hide.

I can take as look at specific slots again this evening.

Thanks for all the help. I think that I tracked down the issue and it should be fixed in the next update.

I can also confirm no slots are set to hide

Thanks for checking. Would any of you be willing to share your betterwardrobe saved variables file and what character & set you see the issue on? Taking a look at the saved data will help me narrow if it is a issue with how the sets are being saved or if it is a issue on how it is being loaded.

Sure, Marquista is the toon I was referencing the issue with here: #326 (comment)

BetterWardrobe.txt
Had to rename it to txt to upload.

RedAnti_BetterWardrobe.txt

Character: Periago

Set: Black Dragonflight
Hidden Pieces: Chest and Boots

Set: DF Blue and Gold
Hidden Pieces: Boots

Character: Renfys

Set: Waiting for Tier
Hidden Pieces: Shoulders, Chest, Bracers, Boots

Set: DF Blue
Hidden Pieces: Shoulders, Chest, Bracers, Gloves, Belt, Boots

Adoil_BetterWardrobe.txt

Character: Lleucu
Set: Radiant Rage
Hidden: Shoulders, Boots

And a strange bit that hopefully helps
Character: Quitter
Set: Blood in the Water
Hidden: none now, but the Belt slot used to be hidden
(I don't know what I did to fix Quitter's set, because as far as I can tell I've tried all the same things with Lleucu and her set it still borked)