Hi Jordan,
Here are the steps I did
1. Flash stock Pie firmware using odin 3.14.4
2. create a .tar version of the custom twrp recovery.img
3. flash custom twrp.zip "AP" using odin odin 3.14.4
4. boot to recovery
5. install treble-16.0.zip.
I still get the same error
Skipping Digest check: no...