u/Curious-Donut5744

2017 GX460 with about 110k miles. I was doing its yearly oil change (don’t drive much anymore) and while inspecting the nooks and crannies I noticed a bunch of sludge at the bottom of the AC compressor. It was leaking 2 years ago so I had it replaced, but embarrassingly, I didn’t look to see if they had cleaned up the leakage. Looking at it now, is it likely that’s old oil or is this compressor leaking as well?

Any advice would be great!