https://pastebin.com/Uk6FmHQr
^ Crash report

The only way I can get it to work is if I disable custom colors in optifine. I've tried both 1.12.2 HD U F5 as well as HD U F4, and HD U F3. Also, shader integration also seems to break all shader waving effects across the board. I'm gonna have to uninstall this until things are more stable :(

Fixed with 2.3.1

Note that you will probably have to change the BF configuration to get waving vegetation to work. Check the release comment on Curseforge for the details.