This has been an ongoing issue on my wife's computer. The "regular" launcher can never patch correctly, and has to reinstall the game *every time* to get a new patch. There's nothing useful logged as to why it failed. Eventually, with the non-QA version, we had to move her to steam. I installed the QA build for the first time ever on her system yesterday. It failed initially going to patch 509, then after a full re-download, it was successful. Today, updating to patch 510, the same thing. With the non-QA version, it eventually got to a point where it could never successfully install a patch. I'm concerned that the QA version is going to end up the same way, effectively blocker her ability to test out the QA server. It seems this would be a rather critical issue to get fixed, since it points to an extremely serious flaw in the launcher, but previous posts on this issue have never resulted in any follow up other than to suggest using Steam. However, that's not an option for the QA system. And I'd think this is something that Portalarium would want to have fixed long before the game goes live.