Structure being left behind after deleting

I had two ore sorters that I deleted at different times and part of the base structure was left behind. I have closed the game and the pieces of structure were still there when I got back on the game.

Can you request the deletion manually? a while ago we improved the footprint of entities and some tiles that were built as part of few entities don't belong strictly belong to those anymore, they are considered as player-placed and you should be able to interact with them.

I played all weekend, and I was able to delete them after like a day, but now I have more of the same pieces of structure from another Ore sorter I deleted yesterday.