Windows version doesn't work with packet compression enabled

[Unarelith]

As the title says.

The client says it receives a packet with an ID equal to something like 6418 which is impossible.
This only happens when packet compression is enabled.

I think the server receives a compressed packet, even though it's supposed to be uncompressed during reception.

[atomicbitty]

Is that why the game is crashing when I press play?

[Unarelith]

Probably, which version are you running, and how do you run it?
This is fixed in sfml25 branch though.