Since I am out of GW60 for while ( sent for repair to Locosys) I did use my good old GT31.
Works fine few times but recently from 3 hour session did record just last 30 min.

3 files were created but first two - 0 bytes.
The device was keeping dry as usual, all buttons locked for the session and didn't change anything until finished.

Did somebody experience a similar problem with GT31? Is it likely to repeat?
Should I do something?