Hello,
Working on fixing the portability of the kicad project (see also PR #2 ).
There is a reference to a footprint Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm_DAVID that seems to me a duplicate from the builtin Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm, but as it is located in the same system library, it is outside this repository.
What is different in your custom reference ? Is it possible to go back to the standard footprint ? Otherwise, it would be good that you include your custom version into the local footprint library that you made.