Fluffy sweater breaks on teleport

Nobody has claimed this yet.

God-take a copy of the green box at http://maps.secondlife.com/secondlife/By%20Design/123/110/22
Alternatively, Dan has a copy of the sweater
Unpack the box & attach the rigged mesh "Rokins - Tari Sweater - LaraX - Fatpack" sweater to your avatar
To be able to see the sweater correctly, you will likely need to wear an alpha on your upper body
The sweater should look nice & fluffy like it does in attachment "Expected.png"
Occasionally though the sweater will be broken as soon as you attach it & you will have to remove it & reattach it for it to render correctly
When you see the sweater correctly with all the fluff displaying, Teleport around a few different regions
Roughly 50% of the time after a teleport, the sweater will lose either some or all of its fluff & look like the attachment "Broken.png"
When the fluff doesn't render on the sweater, sometimes zooming the camera out & back will fix it. This doesn't always work though & you have to remove & reattach the sweater to see it correctly
When the fluff isn't rendering on the sweater, right clicking the sweater doesn't fix it
When you see the sweater fluff rendering correctly, observers may see the fluff missing & when you see the fluff missing, observers may see the fluff rendering correctly
If you rez the sweater on the ground, you will see it is made up of many different layers & there is quite a bit of space between each layer so I wonder if it's the way the sweater is structured that triggers this behaviour
I'm also not sure if this is a bug or a content creation issue.
Dan Linden has also reproduced the bug.
Bug reproduces the same on the LL viewer & Firestorm Viewer.

https://secondlife.canny.io/admin/board/bug-reports/p/fluffy-sweater-breaks-on-teleport

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No source files or tests are named. Start by reproducing the attachment and teleport sequence with the "Rokins - Tari Sweater - LaraX - Fatpack" sweater, comparing Expected.png and Broken.png across viewers and observer views; done means the fluff remains rendered consistently after teleport without detach-and-reattach workarounds.

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