From what I've understood official translators & co get the digital raw like a week before the official release ( 00.00 AM Monday) . redon & co are buddies with these people and this is how they get stuff so early. But actually leaking the digital raw pages is a big no no for some reason.
While the shonen jumps only start being shipped out to stores in Japan on Wednesday or Thursday (which is how we get raw scans a few days before the official release)
If there's actually a chapter it is likely that the digital raw got delayed, at least redon/pew source(s) didn't receive it
if it is really a sudden break then I guess Oda got sick