@electronix27
I believe my probe cables (RT-ZP03) suffer from the same problem, although not to the degree to cause a 'puddle'. But they feel very sticky, and when you handle them they leave a greasy feeling, and make you want to wash your hands. I bought my scope about three years ago, and I probably first noticed the problem last fall. The probes, when not in use, hang on a wall with no contact with anything else.
Beside them hang the probes (HZ200) from my previous scope (Hameg), and they do not suffer from this problem. I have had that scope for 20 years+.
I have encountered this problem before, especially in audio equipment where the manufacturer has tried to create a very flexible cable. On my high-end headphones, the symptoms appeared after more than fifteen years, but did not get worse. On my not-so-high-end headphones the symptoms also took a long time to appear, but they got worse over time, so I had to replace the cable.
The worst cable I have had was a headphone extension cable of unknown origin that lay looped in a drawer for a long time. That cable had become a sticky mess, almost 'melted'. It was impossible to separate the windings.
My net searches gave no solution, other than to periodically wipe the cables with isopropyl. The cause of the problem was claimed to be the softener agent in the material leaking out over time.
/Rydda