First test:
Simple addon of 3 lines
Lua Code:
TestAddOnSV = TestAddOnSV or {}
TestAddOnSV["test"] = "test"
print("Test")
On its own, I can go into the settings and adjust anything and close it with no errors.
Added Bugsack and Buggrabber to add a custom options frame and it then has problems. Now seeing most of us use these 2 addons I wouldn't be surprised if we will have to wait until they have updated their addons to fully work in 10.0 before those errors go away.
Unfortunately it doesn't solve my nUI and editmode issues. But I suspect I know why but need to test that theory another time.