I changed them all to other fuel types as a test, when I changed them all back to RP1 including the symetrical parts (apart from one fuselage part below the command pod) when taking off it appears some of them are still using the old fuel type clearly notable as all but one engine now has fuel.
Thanks for the bug report. That made it really easy to isolate the bug and fix it. Should be fixed in 0.3.3.0.