Same issue here, but on 1.7.3. Makes up about 75% of my 101MB log file. Most of the other 25MB seems to be KS3P throwing some sort of exception, but that's not for this thread. I crash occasionally, but mostly it's just annoying when trying to troubleshoot other issues. My mod list is a bit smaller than those posted here so far and has no non-stock parts beyond MechJeb and KER computers, which may help narrow down the problem. I suspect SimpleFuelSwitch is to blame in my case but haven't uninstalled it to check since I'm currently using a lot of stock 2.5m and 3.75m tanks filled with LF.
Consists almost entirely of this sort of thing:
Interestingly there are only errors for Rockomax fuel tanks; none for Kerbodyne or FL-T tanks. IIRC the last rocket I flew around the time this log was generated had only Rockomax tanks, but none had been swapped to LF; they were all standard LF+OX.
Log file (compressed to 1MB)
Mod List:
A comment on a GitHub page somewhere when I was googling this error mentioned that they thought it was related to the stock delta-V calculator, not sure if that's useful information or not.
