To prevent problems like these it is suggested to use path variables also for personal libraries as explained in Library management in KiCad version 5 and in the 3d model assignment section of Tutorial: How to make a footprint in KiCad 5.1.x?
To prevent problems like these it is suggested to use path variables also for personal libraries as explained in Library management in KiCad version 5 and in the 3d model assignment section of Tutorial: How to make a footprint in KiCad 5.1.x?