push fails on local origin

[StefanoMarina]

Version is: 0.8.0 Windows 10 64 (downloaded binary)
Using git bash

I work on a local copy with the repository set on a samba hard disk linked to my router. git push works fine and git bug push worked fine (i guess) the first time. After that, any bug push request results in

$ git bug push
Error: unpack error: index-pack abnormal exit

Am I doing something wrong?

(btw wrong place I know but amazing work - this app command is a real life saver)