text: just guessing, https://www.openstreetmap.org/way/762117866 is too recent to have been re-rendered, as it is not different compared to the one that does render to its south.  elsewhere it took many weeks for something to appear and after i forgot about it, revisiting it some months later showed islands where none had been rendered earlier.
  
  the particular area i link above was last changed direction five days over a month ago as i reply here.