I haven’t completely lost any refreshed areas yet, but some places are taking an inordinate amount of time to be fully repopulated with new tile data, to the extent that unless you’re prepared to give the client however long it needs to complete the refresh, it can appear that the tiles aren’t being served up at all.
Wouldn’t be so bad if the client actually gave you a reliable indication of the refresh progress, but it’s a complete joke when the status text at the top of the screen spins up to 100% just as quickly as it always has done, despite at least half of the screen being devoid of any tile data, and with new tiles continuing to plop very obviously into view every few seconds just to make it absolutely clear that the update is far, far, FAR from being complete… Given how the client seems to be designed around the idyllic notion that the link between client and server will never be performing at anything less than 100%, it wouldn’t surprise me in the slightest if that completion percentage is based on how many tile requests are remaining in the outgoing queue from client to server, rather than being based on how many of the requested tiles have actually been received.