Minecraft 1.14.1
CC: cc-tweaked-1.14.1-1.82.4.jar
Fabric-loader: 0.4.7+build.147-1.14.1+build.4

Steps to reproduce:
1: Get a wireless pocket computer
2. Turn on wireless modem.
3. Move the camera and you can see, that the right side of the red status indicator flickers between red and black. Looks like when two object is at the same place, and the z buffer can't render it correctly.

This issue was present in the 1.14 beta release too if I remember correctly.

Some pictures about the issue:

Have a nice day, and sorry for the many bug reports :D
Thanks for maintaining and developing the mod :)