[Mesa-users] lnr_residuals dropping to zero

[Alex Ferraro]

Hi MESA community

I have MESA 12115 running on Linux, using the binary module to have
massive stars interact on the main sequence.

I intermittently come across an issue with the closer binary pairs
(initial orbital period of 3 - 10 days) whereby the lnr_residuals drop
effectively to zero (log_lnr_residual = -99) for ALL CELLS of BOTH STARS.
This occurs periodically at a certain point in the evolution and results
in the radius of the donor expanding and contracting greatly and
unphysically.

Does anyone have any suggestions as to what could cause all the residuals
to drop to this value? Inlists and a few plots are attached.

Thank you everyone
Kind regards
Alex
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