Some drills not loading

[calvss]

Drills MKS_Drill_02, 02A, 03, and 03A aren't loading.

KSP.log:

[LOG 16:59:50.433] PartLoader: Compiling Part 'UmbraSpaceIndustries/MKS/Parts/MKS_Drill_01/MKS_Drill_01'
[LOG 16:59:50.476] PartLoader: Compiling Part 'UmbraSpaceIndustries/MKS/Parts/MKS_Drill_01A/MKS_Drill_01A'
[LOG 16:59:50.513] PartLoader: Compiling Part 'UmbraSpaceIndustries/MKS/Parts/MKS_Drill_02/MKS_Drill_02'
[ERR 16:59:50.515] PartCompiler: Cannot clone model 'Squad/Parts/Resources/RadialDrill/TriBitDrill' as model does not exist
[ERR 16:59:50.515] PartCompiler: Model was not compiled correctly
[ERR 16:59:50.515] PartCompiler: Cannot compile model
[ERR 16:59:50.515] PartCompiler: Cannot compile part
[LOG 16:59:50.515] PartLoader: Compiling Part 'UmbraSpaceIndustries/MKS/Parts/MKS_Drill_02A/MKS_Drill_02A'
[ERR 16:59:50.516] PartCompiler: Cannot clone model 'Squad/Parts/Resources/RadialDrill/TriBitDrill' as model does not exist
[ERR 16:59:50.516] PartCompiler: Model was not compiled correctly
[ERR 16:59:50.516] PartCompiler: Cannot compile model
[ERR 16:59:50.516] PartCompiler: Cannot compile part
[LOG 16:59:50.516] PartLoader: Compiling Part 'UmbraSpaceIndustries/MKS/Parts/MKS_Drill_03/MKS_Drill_03'
[ERR 16:59:50.517] PartCompiler: Cannot clone model 'Squad/Parts/Resources/RadialDrill/TriBitDrill' as model does not exist
[ERR 16:59:50.517] PartCompiler: Model was not compiled correctly
[ERR 16:59:50.517] PartCompiler: Cannot compile model
[ERR 16:59:50.517] PartCompiler: Cannot compile part
[LOG 16:59:50.517] PartLoader: Compiling Part 'UmbraSpaceIndustries/MKS/Parts/MKS_Drill_03A/MKS_Drill_03A'
[ERR 16:59:50.518] PartCompiler: Cannot clone model 'Squad/Parts/Resources/RadialDrill/TriBitDrill' as model does not exist
[ERR 16:59:50.518] PartCompiler: Model was not compiled correctly
[ERR 16:59:50.518] PartCompiler: Cannot compile model
[ERR 16:59:50.519] PartCompiler: Cannot compile part`

However, the file /Squad/.../TriBitDrill.mu exists and part "Drill-O-Matic Mining Excavator" was loaded just fine:

[LOG 16:59:38.751] PartLoader: Compiling Part 'Squad/Parts/Resources/RadialDrill/RadialDrill/RadialDrill'

on KSP 1.9.1
MKS 1.3.0

[calvss]

I made a hacky workaround by copying the "missing" model files into the /MKS/Parts directory and editing MKS_Drill_*.cfg to use UmbraSpaceIndustries/MKS/Parts/TriBitDrill instead of Squad/MKS/Parts/TriBitDrill