Incorrect auto-selected fuel type on fuel tanks

The linked craft’s auto-selected fuel type for the side attached boosters’ main tanks are bugged. It currently has monopropellant auto-selected, but within a matter of seconds of loading the craft it will change its auto-selected fuel yet again to solid fuel. Note that I saved the craft after I saw the warning for the lack of a solid fuel source, and the auto selected fuel type did not change to solid on the craft until I switched to another craft and came back to what should have been an identical save.
I came across this trying to test auto-staging’s inaccuracies.