Platesolve2 error unable to read the image file (unspecified error)

Have started getting this error. Image will solve Ok with Pinpoint or local ANSVR. temp image is created by SGP and perameters seem to be read from the fits headers for passing to platesolve.

This happens both with previous images and curent images.

Log

[DEBUG] [Image Plate Solve Thread] SaveFileBmp16: Locking bitmap for disk write…
[2/28/2017 8:08:59 AM] [DEBUG] [Image Plate Solve Thread] SaveFileBmp16: Opening file stream…
[2/28/2017 8:08:59 AM] [DEBUG] [Image Plate Solve Thread] SaveFileBmp16: Writing FITS headers…
[2/28/2017 8:08:59 AM] [DEBUG] [Image Plate Solve Thread] SaveFileBmp16: Traversing and persisting bitmap data…
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] SaveFileBmp16: FITS block fill…
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] SaveFileBmp16: Unlocking bitmap…
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] SaveFileBmp16: Closing file stream
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] FitsFileHeaderData: Angle - 21.7873511274881
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] FitsFileHeaderData: Scale - 1.06866983459409
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] FitsFileHeaderData: RA - 13.5132882188627
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] FitsFileHeaderData: DEC - 47.4157180851064
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] PlateSove2 Param: RA (HRS) - 13.5132888888889
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] PlateSove2 Param: RA (RAD) - 3.53777075826416
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] PlateSove2 Param: DEC (DEG) - 47.4157194444444
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] PlateSove2 Param: DEC (RAD) - 0.827560421507452
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] PlateSove2 Param: SCALE - 1.06866983459409
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] PlateSove2 Param: Width - 4944
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] PlateSove2 Param: Height - 3284
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] PlateSove2 Param: Regions - 999
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] PlateSolve2 Command Line:
[2/28/2017 8:09:00 AM] [DEBUG] [Image Plate Solve Thread] C:\Users\Obs2\AppData\Local\SequenceGenerator\PlateSolve2.exe 3.53777075826416,0.82756042150745,0.02561514859643,0.01701459304019,999,C:\Users\Obs2\AppData\Local\SequenceGenerator\Temp\psXSolve_0.fit