They have fixed a lot of issues in each release they have produced, just because a couple of problems you are experiencing have not been fixed as of yet does not mean nothing has been fixed. But regardless of any of that, you have access to the full source, if these are really show stopping to you and easy issues as you put it, how about having a go at fixing them so you can get your games shipped, and even submit a PR to Epic to have it merged into the main branch. If your not a programmer (Or do not have the necessary skill) then either find someone who can, or post in the forums outlining the issue and what you believe the fix to be, I’m sure if its as easy an issue as you state, someone would be willing to fix it. Otherwise you’ll just have to wait, Epic will eventually fix the issue in a later release (If they haven’t already in the master branch)