Could not open file /tmp/kstars/phd2.fits - by: alacant

Hi
Loads of these errors:

[2018-07-18T23:23:00.126 CEST INFO ][ org.kde.kstars.fits] - Loading FITS file "/tmp/kstars/phd2.fits"
[2018-07-18T23:23:02.638 CEST INFO ][ org.kde.kstars.fits] - Loading FITS file "/tmp/kstars/phd2.fits"
[2018-07-18T23:23:02.640 CEST CRIT ][ org.kde.kstars.fits] - "Could not open file /tmp/kstars/phd2.fits. Error could not open the named file"
[2018-07-18T23:23:05.265 CEST INFO ][ org.kde.kstars.fits] - Loading FITS file "/tmp/kstars/phd2.fits"
[2018-07-18T23:23:08.172 CEST INFO ][ org.kde.kstars.fits] - Loading FITS file "/tmp/kstars/phd2.fits"
[2018-07-18T23:23:08.173 CEST CRIT ][ org.kde.kstars.fits] - "Could not open file /tmp/kstars/phd2.fits. Error could not open the named file"
Th frequency is related to the -in this case- 2 second guide exposure.

Eventually capture is aborted -the log ends abruptly- and kstars disappears from the screen.
The PHD2 window is refreshing fine and guiding is good. AFAICT, PHD2 doesn't write anything to /tmp. Any idea of the cause of these error messages?
TIA
Logs:
drive.google.com/open?id=1EAKu5qeg-KkyI05wsyL94wjh_9Dir2G_