Fenix 8 51mm skin temp no data

Hi,

I‘ve just recently got my Fenix 8 and it seems that Skin temp data is still blank on the 1 day sleep detail tab. 

I’ve tried to look through the forums there seem to be various instances of this across different watches ranges but no solution.

I’ve verified there is a SkinTemp folder in /Garmin on the watch, the data screen no longer says calibrating just “- -“.

I’m just trying to see if anyone who’s had this issue knows of a quick fix?

Many thanks

edit:

took the watch off before syncing this morning and plugged into PC to check SkinTemp folder and there was a fit file in the directory. Seemed to work when I synced after this.

Today would be the 7th time recording sleep with this watch so unsure if it’s 7 days of baseline data instead of 3 which it seems to suggest on connect.