Thanks for that. I've moved to FP8 and removed the compat libs from the build but still have the same issue.
This is a fresh install of TDI and for now I'm running ibmdisrv with the solution directory in the installation directory so I was expecting all paths and quoting would be ok.
I'll turn on some debugging to see if I can find at least where the message is coming from. That should help lead to a fix.
Aside: In reality I'll volume mount the solution directory from S3 into the container to better integrate with our CI/CD pipelines. Right now I'm just trying to get TDI running in the container