Pitslug

@Arrowstar I've had a similar problem. Using bodies file and importing initial data from the active craft and then uploading the "perfect" maneuver and it completely misses planetary intercepts. Tried with both stock bodies and RSS and had the same problem. I did a quick check with a completely stock game (no mods) and found that it seemed to work fine - can you try that @jakkarth and let me know if that works for you? At this point though, I'm not sure if it's a particular mod that messes it up, or if the further it gets from the starting UT the further out of sync it gets. Now that I know I'm not alone, I might do some more testing.

@EnzoMeertens The output log file is getting spammed with a KIS 1.2.5 error when both KKS and KIS are installed. Currently KIS is on version 1.2.7. It sounds like that may have something to do with it.

Can confirm - also getting this bug when KKS and KIS is installed. Removing either solves the problem. Hopefully this compatibility can be figured out - I'd love to use both.

Turns out it was Kerbal Krash System for me too. Removing either that or KIS fixes the problem, so it's obviously a compatibility issue between the two. I'll also post on the KKS mod to let them know.

@DigitalProeliator I'm having the same problem with KIS on the stock lander can. To help narrow down the testing (I'm going to go through them as well), here's the list of my mods that overlap with yours. If you find the culprit and I'll confirm let me know and I'll try to confirm with mine and vice versa.