That sort gotcha is nasty, thanks for naming it. I spent an evening last month convinced my account had a problem because a table query kept returning stuff I "knew" was outdated. It was me feeding the API parameters it never read, and the oldest rows happened to tell the story I already believed. Never again without a control query.

The id thing too. Copying a working third-party op character for character before your own first broadcast is the cheapest insurance there is on these sidechains. Most of the "my tokens vanished" posts I see are really "my op was mined but never applied" posts, and nobody on either side noticed the difference. Bookmarking this checklist.