Wxsim getdata fails with "runtime error 9: subscript out of range"

Since a few days wxsim is failing on importing gfs/ecmwf and checking ecmwf in wxsimate.
processmon is showing that the last accessed file is c:\wxsim\wdatamixed.txt

Log.txt is having follwing lines, but I can confirm that c:\wxsim\wdatamixed.txt exits (and even processmon is showing actual data reads by wxsim)

Checking for existence of file: c:\wxsim\wdatamixed.txt
Error  53  at line 3353: File not found
*Clicked Get Data*
got to metscn

Rerunning euromix doesn’t help

Any ideas (besides not using mix at all)?

From my experience that is caused by a corrupt file also a file could be locked a computer reboot will unlock any locked files
If that fails
Try reloading a copy of the settings files sent to you by Tom when you purchased wxsim
Failing that after making a backup delete the large gfs and ecmwf files
Last time I had this I just copied the most recent files from a 2 day old backup and that stopped the errors