I'm using MechJeb build 685 in 64 bit 1.2.2.1622 and the aerobraking predictions usually won't load. I've just entered the Jool system and I'm trying to judge the proper periapsis height for aerobraking to set up for a Laythe encounter. So I pull up the landing guidance module and select show landing predictions and show aerobrake nodes. Sometimes it works, but usually it times out. Laythe encounter aerobraking also times out. I've linked my output_log files below. What other information can I provide to help replication/debugging?
output_logs (7zipped)
edit: I may be trying to run the prediction from too far out - it seems to work more often when I open the landing guidance closer to the planet
edit 2: it appears to be related to my speed/periapsis - it seems to time out calculating if a landing will not occur on this orbit. Even though what I really need is the aerobrake calc for the current orbit it won't return that unless it can calculate a landing. So if I don't dip into the atmosphere enough to slow down for a landing it continues to calculate until it comes up with a landing. If that is too far in the future it won't return the current aerobrake results.
