Several visual glitches to equipment

[Iscah]

They're entirely different items. It is possible to fix one without touching the other, I've seen posts from people who had items with a lesser visual disturbance being fixed, no reason to keep these glitches going.

Yes, of course they're different items - but item interactions aren't determined on an item-by-item basis.

To be clear, this is speculative from observation and I've never seen the game code. But it's almost certainly the case that each chest piece has a simple yes/no switch that determines whether sashes show or not, and this is a blanket setting that can't be fine-tuned, otherwise the drama over the Quaintrelle's Skirt wouldn't have happened, or at least been fixed long ago.

Additionally, the Patch 5.4 notes specify that certain shirts, including the Spring Shirt, have been adjusted so that "certain leg gear that was previously hidden can now be seen". That would be the setting that allows sashes to show, and you can see it at work on a few different items. As a quick example with two shirts that are very similar besides how they handle sashes:

The Spring Shirt SHOWS sashes, resulting in:
Visible Quaintrelle's Skirt
Waist drape on Constellation Gaskins
Clipping with waistband of Soothsayer's Skirt (as above)

The Hannish Wool Autumn Shirt HIDES sashes, resulting in:
Incompatibility with Quaintrelle's Skirt
No sash on Constellation Gaskins
Hides waistband and belt of Soothsayer's Skirt

If this was being set piece-by-piece, you probably wouldn't make half those decisions. But it's being applied at a blanket level so some things work while others break.

For the "previous fixes" were these single items or was it about how items interacted? I'm not saying that nothing can be fixed, but that - unless I'm interpreting it wrongly - it's not just a matter of fixing a single interaction between two items but deciding how an entire class of items will interact with each other.