I know this is an old post, but it held promise to solve my current issue. Conan Exiles Modding upload to steam fails Error 44. This seems to be a new issue with little to no information on what to do for it. I tried this application you’ve posted, but it hasn’t solved the problem. However it does seem to address the files that are most likely causing the error. Do you plan on updating this application to work with recent versions of UE?
Thanks,
Tardis