Linking to another thread, apparently this is fixed.
viewtopic.php?p=702581

I encountered the same issue on 2.1.15, this time in multiplayer on a dedicated server.

What I did
1. Joined a dedicated Factorio 2.1.15 server using the Steam client (Originally started ~ 2 weeks ago on 2.1.14)
2. Finished Space Age by travelling to/past the Solar System Edge at 92:23:29 map ...

Maybe a duplicate of this:
viewtopic.php?t=55629

https://drive.google.com/file/d/1zjeWLs ... sp=sharing

https://drive.google.com/file/d/1T5D2o_ ... sp=sharing

Got the desync dumps.

What did you do?
Placing a (big) blueprint via map, in an area which is partly obscured (no radar).
Playing in LAN with two players, no mods.

What happened?
Multiplayer Desync, second Player disconnected.
Seems to be reproducable.

What did you expect to happen instead?
Blueprint is placed and ...

Really nice, like the new interface. I got some eye twitching when some text was off by one pixel, but I guess it's just the mockups ;) I found some buttons a bit too big, but I guess this is a design choice.

On the bright side, this mean 0.16 will come a bit sooner.
Oh come on, don't tease us ...

This still exists in 0.15.3.