see screenshots, stuff dont look right, it looks like either the pattern is mapped to the shield at a lower resolution or the layers are not applied properly.
Environment
1920x1080 radeon rx580 ryzen 7 2700 windows 10 home ver 1903 build 18362.836 java 8 update 221
Hi there!
This is a duplicate of MC-86135. Make sure to do a quick search for your bug before posting it, and then vote for it, comment on it, and follow it. This is the best way for it to be prioritized by Mojang. Making a duplicate post means more work for the volunteers who help out to moderate and clean things up for the developers to look at and fix what needs to be fixed.