The issue is still there on stable.

I believe I have discovered the problem, very strange actually, hopefully it will help someone else who's having the same issue. In the editor if you spawn objects in the black zone of the map where there is nothing.... that can cause strange crashing while saving and previewing.

So don't spawn objects in the black zone of the maps you're working on. Moved the objects away from the black zone and crashing stops, move objects in the black zone and crashing starts again.

I'm having the same issue as well with call custom sounds which used to work for years without fail until now. When I press esc while a custom sound is playing it will repeat from the beginning which can be a big problem.

The way to reproduce this...

inside your mission folder, create a folder named "music" and put a custom ogg type file inside of it, name your sound clip "test" or whatever. Then create a description folder and copy past this inside it...

class CfgMusic
{
tracks[]={};
class test
{ name = ""; sound[] = {\music\test.ogg, db+1, 1.0};
};

};

^ Now click save, and start your game, and start your mission through the editor. Spawn a blufor soldier, create a trigger and set it for blufor present, inside the onact field copy and paste this and click ok.....

playmusic "test";

^ Hope that helps. Many mission makers use custom sounds so, I think the best thing to do is make a fix where you press esc it pauses all custom sounds together with the game, then press esc again all custom sounds play where they left off with the game. Hope this post helped.