problems PUBLIC

So I'm not sure but this circuit appears to excite some sort of bug or convergence problem.

Running Frequency domain simulation looking at the labelled nodes, R24 set to >~1.92M all seems to run fine. I'm interrogating the phase and gain at each of the nodes. However, below about 1.9M ohm, the gain plots go from ~0dbV gain in the low end to about -200dbV in a very nonlinear fashion. Something appears to be breaking as the simulation time also seems to blow up - so likely a convergence issue... Any suggestions? Should I change op-amp models?