Apple drops Thunderbolt 2 eGPU support in 10.13.4 Beta 2 Posted by Lio on Wednesday February 21, 2018 @07:43AM from the egpu.io dept. https://egpu.io/external-gpu-macos-10-13-4-update/ ( 2 comments | 3 points | on HN )
The article states:
"10.13.4 Beta 2 came out today and it broke compatibility with Thunderbolt 1 & 2".
It's beta software - it's quite possible this is only a bug/broken feature.