I change the connectivity range with the sliding bar (for example for selecting the connectivity range from 0 to 0.16 instead of 0.2) and then run the simulation, the values are mysteriously extended back to the original range, including extra high values.
What it worked for me was to select Step = 0.02 Range Start = 0.04 and End = 0.14
Could you, before trying this set of parameters execute a Browser -> Clean cache action?
It could indeed be a cache problem. actually what I was about to write you is that I did a TVBclean and the thing worked fine the first time, and bad the second.