I edited an island and now it’s missing from search

A few weeks ago I edited the name and boundaries of Majuli Island in Assam, India, and ever since, it doesn't show up in any search on OpenStreetMap.org, nor in the search in the editing interface there. I can find it in the editor by zooming in and clicking on one of the lines that forms its boundary, but that seems to be the only way. What's going, and how can I fix what I broke?

The feature name is Majuli Island, feature type "island" (multipolygon), Wikidata identifier Q277552.

Thanks!