Muon analysis interface not using parameter fixes and not accepting parameter entry

I’m trying to perform a standard simultaneous fit on muon data recorded at three different fields at the same temperature, fixing the field in the fitting function to the known field applied.

Trying to use the parameter fixing window doesn’t always fix the parameters so they instead vary during the fit, and typing them in one by one also isn’t always fixing them. Both methods sometimes don’t even stored the parameters I’ve entered.

This prevents a consistent fit across multiple temperature so I can’t even generate a fit table and I can’t complete the analysis in Mantid. This problem affects both the released version and the nightly I downloaded on Monday.

I think this is a bug within the multiple fitting pop-up (the one you get from clicking the ...). We will be looking into it for release 6.0