Hi Taka,
it seems really to be an incompatibility of the two databases - interestingly, as I heart, it occurs only with TCS and not with TCR...
So, I can only advise you to do one of the following:
- don't use diffusion data for the LIQUID phase which probably makes the trouble (the values are anyway 1.E-5 cm2/s for all elements!)
- ask Nigel Saunders/ThermoTech whether he has a fix for that
- use another steel database, e.g. TCFE6
- use the old version R of Thermo-Calc (then, of course, you also have to use MICRESS with TQR

)
I hope that this advices help you to work around the problem...
Bernd