Female model bug when unsheathing/trying on a RPR scythe

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Date & Time: 10/21/2022
Frequency: All the time
World name: Balmung
Character name: Caelia Silverarch
Class/Level: Reaper, all levels
Steps:
1. Try on or unsheathe RPR weapon
2. turn the model in the Fitting Room window or turn the camera
3.
https://i.imgur.com/g53Nv1n.png https://i.imgur.com/eVcisut.png

Seven Hells what's happened to her spine?! It's also noticeable in some gear as well
https://i.imgur.com/eVcisut.png.

I tested it on other characters as well, with varying heights and bone structure in the models:

https://i.imgur.com/uPUVfTH.png
https://i.imgur.com/XQHp0K4.png
https://i.imgur.com/S1CgxvJ.png
https://i.imgur.com/oosnzbC.png
https://i.imgur.com/MBLLxtP.png
https://i.imgur.com/XA6ViSF.png
https://i.imgur.com/11VGe6V.png
https://i.imgur.com/ORpDaBK.png
https://i.imgur.com/Q7qkdQx.png

The issue is reminiscent of when male Viera were in the benchmark and they had a weird gait on them that was tweaked before release - in this case, the male characters don't look bad holding a scythe from a different angle (nor does the Lalafell, who just has some weird neck issues) but the female characters range between a not too noticeable to "why is there a reverse shelf under her ribcage" happening. It's most prominent on the Highlander and Midlander, and Au Ra. The Elezan is more smoothed out, possibly from her height, and the Miqo'te doesn't look as bad either, nor does the female Viera. It was quite jarring to be turning my character while looking at a weapon upgrade to check it out to see that though!