System Information
Operating system: Windows 7 Home Premium 64 bits, RAM 4GB
Procesor: Intel(R) Core(TM) i5 M 460 2.53 GHz
Graphics card: none?
Blender Version
v2.81 beta eba4a4bd73ba date 2019-11-15 16:32
this bones in edit mode appear like this i dont know why this happened, but this doesnt looks like a part from the mesh messed up which is parented to these bones..
a little screenshot