Missing data!

I drew polygons with tags “landuse”, “natural” and made the screenshot to continue. Today, there are no polygons, no history, no history of my edits. Disappeared without a trace. Is this possible?
This place: https://www.openstreetmap.org/#map=14/62.1686/21.6630&layers=N
There is no any polygon now. But they was exactly.
A huge area looks purified: https://www.openstreetmap.org/#map=10/61.9593/21.8903&layers=N

I found a couple of your changesets, e.g. https://www.openstreetmap.org/changeset/46427031#map=19/51.53220/9.19729&layers=N

the landuse of that one (and the previous ones) are still visible.

It would be helpful in case you could provide the changeset yourself. It is always possible that someone deleted a landuse that you added. This can be on purpose (because it is duplicate), by accident or as vandalism. The best place to start is finding the particular changeset in which you uploaded the landuse. From there you can see the polygon ID and the history.

Thanks. It was my mistake. I found all with help of http://simon04.dev.openstreetmap.org/whodidit/.

Topic closed.