Ok, latest I have is that I get the same issue regardless of where AtmoDXUtil is, though if i remove it the error shows that it can't be found. GUI reports no error but doesn't show live view. TV shows the exception above.
With V57 I don't get those errors however AtmoLight will only work once so we probably need to bugfix where we grab the surface , also noticed a variable delay (100-500ms) compared to our earlier method with the hook (AtmoLight_V25 beta) but not sure if that is madVR settings related or that it can't supply the surface fast enough.