If there were other diggers in done (doing Vanabutt probably) the easy zones were probably just all dug up! Faint memories of digging against RMT in Altepa, good times. I forget how long it takes to refresh items, good luck buddy
IIRC they changed this a while back, but I could be completely insane. More specifically, we're not actually sure. The June 2016 version update made it so you didn't have per-zone personal fatigue anymore:
Quote:
Chocobo digging has undergone the following adjustments.
•The limitations on number of items found per area have been abolished.
And BG Wiki THINKS this is a removal of the overall items-per-zone-dug-out thing:
Quote:
Historically, zones were able to be dug clean by multiple players and few to no items would be left until replaced at a certain moon phase. This was removed in the June 7th 2016 update. Thus there is no longer a universal item limit per zone, only a daily personal fatigue limit similar to fishing.
but afaik nobody has ever proven this, it's just incredibly likely...
but it never would have come up before this Vana'bout if it is in fact still a thing.
So yes, zone, but also, who knows? Not me!