Hello,

I have been trying to run hourly footprints in X-STILT and encountered what I think is a bug in STILT. When I try to run a footprint in STILT starting at 22:00, neither the footprint file nor the _traj.rds file is created and I get the following error ".../PARTICLE_STILT.DAT does not contain any trajectory data." Then when I look in the stilt.log file, I see the following message

*ERROR* metpos: start point not within (x,y,t) any data file
  - start time before start of meteorology data

Footprints at all other hours of the day (eg both 21:00 and 23:00) seem to work fine, it's just the footprints at 22:00. I am using gfs0p25 as meteorology. It seems unrelated to other parameters like lati, long, zagl, n_hours, etc.

Thanks for considering this issue,
Jon-Paul