I just installed Mini Sample Return Capsule and have Kerbalism installed, and while loading KSP, Module Manager reported that there were 4 warnings. I checked its MMPatch.log and found the warnings were coming from Mini Sample Return Capsule's kerbalism.cfg:
[WRN 11:20:15.087] more than one pass specifier detected, ignoring all but the first: MiniSampleReturnCapsule/Compatibility/Kerbalism/@KERBALISM_HDD_SIZES:BEFORE[KerbalismDefault]:NEEDS[MiniSampleReturnCapsule,FeatureScience]:FOR[MiniSampleReturnCapsule]
[WRN 11:20:15.088] more than one pass specifier detected, ignoring all but the first: MiniSampleReturnCapsule/Compatibility/Kerbalism/@part[msrc-cargobay]:NEEDS[MiniSampleReturnCapsule,FeatureScience]:AFTER[KerbalismDefault]:FOR[MiniSampleReturnCapsule]
[WRN 11:20:15.088] more than one pass specifier detected, ignoring all but the first: MiniSampleReturnCapsule/Compatibility/Kerbalism/@part[msrc-parachute]:NEEDS[MiniSampleReturnCapsule,FeatureScience]:AFTER[KerbalismDefault]:FOR[MiniSampleReturnCapsule]
[WRN 11:20:15.088] more than one pass specifier detected, ignoring all but the first: MiniSampleReturnCapsule/Compatibility/Kerbalism/@part[msrc-parachute]:NEEDS[MiniSampleReturnCapsule]:FOR[KerbalismDefault]:FOR[MiniSampleReturnCapsule]
In the first three warnings, the FOR specifier looks superfluous.
In the fourth warning, there's two FOR specifiers and one refers to KerbalismDefault. I assume the fix for this line is removing the FOR[KerbalismDefault], since you're only supposed to use FOR specifiers for the mod the cfg file is in.
Mod: 1.4.2, according to the KSP Add-on Version Checker. CKAN thinks it is 1.4.1.0 for some reason, but according to the changelogs, there was no kerbalism.cfg in 1.4.1.0.
KSP: 1.12.3.3173
Download/Installation: CKAN
KSP.log: The thing to drop a KSP.log in appears to be missing from this form. (Unless I'm failing to see it because of how little sleep I got last night.)