MechJeb Version
2.15.1 (inst via ckan)
KSP Version
v1.12.5.3190
Description
In previous version of MJ (2.14.3) when using the rendezvous planner it would adjust the orbit etc to fit within the phases entered. New version it will just make a maneuver straight to intercept target
Replication Case
Just try and use it with a 80-100k orbit of kerbin (reverted to MJ v2.14.3 and verified old version does work as expected)
KSP.log
Didn't save a copy of the KSP log before reverting but here is a prev-player.log . Tried using pastbin and gist but maybe it's too big. Here is a Google drive link https://drive.google.com/file/d/1OueqddAGGOyJIIIyvOINp120wLw590zW/view?usp=drive_link
If you need more I can reinstall the latest and try again
NOTE: The latest development release of MechJeb can be downloaded from jenkins ( https://tinyurl.com/hgckqmk ).