Pipeline crash because multiple timestamp in cal table

[PeterKamphuis]

I was trying to run ARTIP on some GSB GMRT data and it crashes everytime on the following error when running the task fluxscale

fluxscale Caught Exception: Found multiple gain solutions in a single timestamp for fieldid=1. Please check the input Caltable.

I don't understand it at all as the reference is set to "0,3" below the full casa output from the casa.log
Any idea what is going wrong here

##### Begin Task: fluxscale          #####

2018-04-21 09:56:25 INFO fluxscale:::: fluxscale(vis="pathtoms/test.ms",caltable="pathtoms/Artip_Out//test/tmp_amp2.gcal",fluxtable="pathtoms/Artip_Out//test/flux.gcal",reference="0,3",transfer=[''],
2018-04-21 09:56:25 INFO fluxscale::::+ listfile="",append=False,refspwmap=[-1],gainthreshold=-1.0,antenna="",
2018-04-21 09:56:25 INFO fluxscale::::+ timerange="",scan="",incremental=False,fitorder=1,display=False)
2018-04-21 09:56:25 INFO fluxscale::calibrater::open Using NEW VI2-driven calibrater tool
2018-04-21 09:56:25 INFO fluxscale::calibrater::open Opening MS: /home/peter/Current_Reduction/J0754+25/23_Sept/test.ms for calibration.
2018-04-21 09:56:25 INFO fluxscale::Calibrater:: Initializing nominal selection to the whole MS.
2018-04-21 09:56:25 INFO fluxscale::calibrater::fluxscale Beginning fluxscale--(MSSelection version)-------
2018-04-21 09:56:25 INFO fluxscale:::: Assuming all non-reference fields are transfer fields.
2018-04-21 09:56:25 INFO fluxscale:::: Found reference field(s): 3C48 3C286
2018-04-21 09:56:25 INFO fluxscale:::: Found transfer field(s): 0741+312
2018-04-21 09:56:25 SEVERE fluxscale::Calibrater::fluxscale Caught Exception: Found multiple gain solutions in a single timestamp for fieldid=1. Please check the input Caltable.
2018-04-21 09:56:25 SEVERE fluxscale:::: Exception Reported: Error in Calibrater::fluxscale.
2018-04-21 09:56:25 SEVERE fluxscale:::: An error occurred running task fluxscale.
2018-04-21 09:56:53 INFO ::casa