I’ve been suffering with the same issue now for about a year.
It appears to happen randomly for me. A full rebuild of the UE project fixed the issue for a few weeks, until yesterday, I needed to do a full rebuild of the package due to the process not starting error.
just a couple days prior to that, I had to delete the intermediate folder to clean for another compiler issue, which did trigger a full rebuild (approx 788 files) for that configuration.
The very next build, after resetting to only incremental build, it triggered again, with no code changes since the day before. I only packaged.
EDIT:
To be clear, I don’t think it’s a misunderstanding of the issue at hand, the question is, how can this be detected, preferably prior to a build and is there any possible way to avoid that situation.