Hi,
I’ve previously reported this bug (or a similar) in Zendesk #128346 (and I’m probably not the one thas has done it). I noticed this bug on Xbox version, so it’s not specific to PC.
The Direct-To display esoterics values, and if you look at the top, it’s written “NaN” (or Not A Number !).
This issue should be solved in the coming SU6. Take a look at the RELEASE NOTES 1.20.5.0, there are lines about this in the Avionics section:
- “G3X no longer show NaN bearing when flying a DirectTo toward an airport”
- “Fixed incorrect values for Bearing (BRG) and Distance (DIST) data fields on G3X”
So, we can expect a correct distance soon in the G3X 
.