The cache is not at the listed coordinates.
This is one of those (other) caches. Like a piece of good art, you'll know it when you see it!

BYOP + TOTT (for log extraction)
******** Congratulations to _WYNN for the FTF! ********

You can validate your puzzle solution with certitude.
[UPDATED NOTE: Check Certitude before heading out for correct coordinates - the GZ needed to be adjusted after being disturbed a few times.]
[Cache] 203. Zntargvp. Ybj Ybj!