The clothes don't fit to custom character morph.
I purchased some clothes but when I put them on my custome characters they don't fit to the morphs.
The attaches images show The Proportion Legs Length with +50% and -50% applied.
The clothes I purchased are 'Urban Overalls Outfit' by fjaa3d and 'X-Fashion Melody Set' by Xtrart-3d.
They don't fit to different character morphs.
I think they are needed to correct by venders.
스크린샷 2025-07-30 161615.png
1251 x 1584 - 709K
스크린샷 2025-07-30 161630.png
1164 x 1410 - 630K
스크린샷 2025-07-30 163113.png
1225 x 1659 - 319K
스크린샷 2025-07-30 163129.png
1237 x 1535 - 304K

Comments
Are the clothes actually fit to the figure?
Neither of those clothes list "Proportion leg length" among supported shapes in product description, so they will adjust to that shape through auto-follow only, but the clothes have to be fit to the figure for that.
Proportion Legs Length is not really a "pure morph" but also ERC linked to a Pose, i.e. a value change on Y Translate of G9's Hip node. So, it's a bit unique case and more likely the root cause comes from an "improper rigging" did by the vendor .... or they could fix the bs morph of Proportion Legs Length on the Overall ~~
You can fill a support ticket in here to escalate the issue and ask for a fix: https://bugs.daz3d.com/hc/en-us/requests/new
Edit: If you want to try, you can export the Overall to OBJ, import OBJ into DS. Re-rig it on G9 Base with Transfer Utility by using Bodysuit Loose Template, then you should be able to see the issue is gone ~