We plan to upgrade it for the 5.0 release.
You can fix the issue with lumen by going to the post proses, search for gather quality and set that to 1. There is an issue when you upgrade projects from EA to release that the default is set wrong. I think a fix is in the making.
For meta sound you don’t need to get the interface anymore. You can delete the function, add the Trigger one again and reconnect without the get interface.
For FullbodyIK node I suggest you just make a new one with the same settings and reconnect to replace it with the broken one.
That are all upgrade issues when you come from EA to release we look into.