Obviously I know what the answer to this will be but I wanted to put it out there anyway.
I’ve been farming arcanes for a few days. I’m running a “circuit” of kingdoms and moving on to the next as soon as a celestial or arcane drops. I’m farming in this order:
Maugrim - Ghulvania - Divinion - Zhulkari - Mist of Scales - Blighted - Khetar - back to Maugrim
I’m seeing normal drop rates across the board (based on my own experience across hundreds of Explores) EXCEPT in Divinion Fields. The drop rate there is 1/3 what I’m seeing elsewhere. And it’s consistent. I spend between 15 and 60 minutes in each kingdom. My shortest stint in Divinion before an arcane drop was almost 3 hours.