Texture gets major artificating and blockiness when imported into TTS that isn't in the original image#3076

Original image (crop, no filters applied in Honeyview):

https://i.postimg.cc/qpRf8fjB/Honeyview-uyok4ZWtz-V.png

TTS:
https://i.postimg.cc/CSJTBMHn/Tabletop-Simulator-m-LK78FXz-GP.png

The image is 2048px. The pips and lines have a stroke and drop shadow effect applied. The TTS image has major blocking around the edges.

Why is it getting so butchered when it gets imported into TTS? Is it the stroke/drop shadow gradient not being rendered properly in TTS?