MechJeb transfer to planet issue

[absincog]

UPDATE:  After testing this some more, it appears that MJ is always computing the interplanetary launch window to Eve to be 157 days 4 hours 52 minutes in the future, regardless of the relative positions of Kerbin and Eve.

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ORIGINAL POST:  I'm having an issue after performing clean installs of KSP 1.1.2 and MJ 2.5.7.

 

Prior to these upgrades, I was working on a mission to Eve. I used MJ repeatedly and reliably to transfer various iterations of my spacecraft to Eve using the 'Launch at interplanetary window',  'Transfer to another planet' and 'Fine tune closest approach to target' maneuvers.  

 

Following the upgrade, after completing the 'Transfer to another planet' maneuver, and attempting to create the 'Fine tune closest approach' maneuver node, I receive a warning that (paraphrasing) the resulting orbit does not approach the target closely. MJ either creates the node with an enormous dV or does not create the node at all.

 

I'm using the same craft and maneuver steps as prior to the software upgrade. Any help appreciated.