Got some Kryonaut to try out, repasted a few PCs including an old 2600k under a NH-D14, the CPU is OCed to 4.8 @ 1.38v and is predominantly used for gaming and on average sits at ~67C under load. I applied the paste as TG recommends, by spreading it out, and everything seemed fine, the temps were good (very similar to the previous application of Noctua's NT-H1) and nothing seemed wrong.
Yesterday, a month after the initial application, I decided I needed the NH-D14 for another PC so I took it off only to find out that the Kryonaut underneath dried out in the exact spot where the CPU die is, what's weird is that I did run a 15min prime95 v26.6 small FFT test and the temps were exactly as the day I applied it.
I wouldn't care much about the paste drying up as the temps are the same if I also didn't use the same tube of Kryonaut for a GTX 1080ti Poseidon which is in a custom loop and has been exhibiting quite abnormal temps, namely when I first replaced the paste on it the temps were around 14-16c delta (water to gpu temp) but now under the same conditions the have went up to 20-21c and being that the paste on the GPU is a month older than on the 2600k it seems like it's reached a point that it's affecting the temps.
TL;DR Used Kryonaut for the first time, dried up a bit after a month of being used on a 2600k, didn't affect the temps but a GTX 1080ti Poseidon in a custom loop repasted with the same tube is now exhibiting higher temps deciding if I should drain the loop and repaste the GPU.