Boosted by @fedicat@pc.cafe
Replying to
@nowster That's a #snac bug. The marker should be returned as a Datetime, documented here: https://docs.joinmastodon.org/api/datetime-format/#datetime Based on the error message it looks like it's returning $milliseconds.$nanoseconds since the epoch.
I've reported this as https://codeberg.org/grunfink/snac2/issues/659