Builds Aren't Properly Saved When Switching Heroes In Sandbox

[dancedanceincineration]

Made builds for haze, seven, mcginnis and paradox in sandbox by switching to each hero after I was done with the previous, and then loaded into a match. Only my paradox build was actually saved.

I did this without leaving & rejoining the sandbox for each hero, which properly saves all builds when done instead of switching heroes in the sandbox.

This feels like an issue. Made the builds just as the patch dropped.