Failing on second FitPage

[butler]

as of commit number SasView commit #ee6d4ad9f2c2cbb3879c610a8371043c82a6a45 and sasmodels commit 0dc34c3c362872f348bed26bcbf2bcae9b0455e SasView now fails on the second fit page after sending a second data set to be fitted.

Specific sequence (but others cause the problem):

• send data set to fitting
• pick a model (e.g.ellipsoid)
• do a fit (all works fine)
• send second data set to fitting (creates a fit page 2)
• choose a model (e.g. ellipsoid)

At this point an error is thrown though the model and parameters appear to load, though neither a fit line nor residuals show up. Pressing fit just throws another error .

Error (which is thrown twice each time) is:

 Traceback (most recent call last):
   File "sas\sascalc\data_util\calcthread.pyc", line 268, in _run
 LogicError: clEnqueueReadBuffer failed: invalid value

playing around in various ways can give longer errors but all start with a calcthread.pyc error so sounds like a thread issue?

NOTES
1 Opening a 3^rd fit page seems to work ok
2 Opening a 2^nd fit page and loading a model works, the error being thrown now when a data set is sent to that fitpage.