@Chlidonias Perhaps it could be a seasonal thing? I have only ever been there in Wurrgeng (cold dry season), whereas you were there in Gurrung (hot dry season).
@Osedax eBird has a fully solid block through July to December, and mostly solid for the other months but with noticeable gaps during February, March and April (not absent throughout those months, but there are some weeks completely clear of reports).