Kerbal Space Program

Version 1.2.2.1622 x64 on Steam
When in Career mode my save games become progressively more and more unstable causing game crashes. The longer I have played a Career mode game the more unstable it becomes, eventually becoming so unstable that it is impossible to play the game and I must create a new Career. This issue doesn't seem to be dependent on version of KSP, I've had KSP since approx version 0.9. This issue has always occurred regardless of version, and some builds seem more stable than others.
The game will crash in any of the UI, tracking station, in flight, VAB, etc... It is typically worst when flying a craft.
Creating a new save will fix the issue temporarily, until the save file has some game-time, flights, then the game crashes return, and they get progressively worse the longer that save file is used.
It does not seem to matter what type of craft is used, stock or custom, or how it is used, or flown, whether or not there is any input or not, whether the craft is stationary or moving, the same issue always re-appears.
Terminating debris will sometimes help, but not always, it may be placebo on my part.
Turning time acceleration up with no flights, or very few flights seems to have no effect.
Having more than a few flights seems to make crashes happen more often.
Copying craft files from older saves over to a new saves does not introduce any instability.
I do not currently have any mods, I have tried uninstalling the game, deleting all files related to the game, and reinstalling it multiple times.
I've attached the latest save game that has become nearly unplayable due to instability, and the last 3 crashes all from today. I have 55 crashes I've kept from the last 6 months that can be provided at request. I can provide any information, files, and/or clarification needed