The JFileChooser dialog is unreliable, sometimes it doesn't open at all. I think it has to do with threading weirdness, but I don't know.

Which OS/Java version are you using, and with how big of a map?

I'm on OS X Yosemite running Java 8

We could ditch the dialog altogether, and save the exported image in .minecraft under some default name, which would be unique to the world + atlas instance.

Not strictly related to this, but there's another old bug where the exporting screen will close if you resize the screen while exporting. Or has that been fixed already?
https://github.com/Hunternif/AntiqueAtlas/blob/master/src/main/java/hunternif/mc/atlas/client/gui/GuiAtlas.java#L366

Finally, I'm just so happy to see you guys continue this mod. Cheers! 👍 👍 👍

I merged #196. The method is still in the code, so we could add an option, but as this issue probably persists then, I'd opt for just closing this issue now.

I know this is a rather old issue, but I'm still experiencing this problem.

A way of simply exporting directly to a file without a chooser -- possibly similar to how screenshots are named -- would be very helpful.

Edit: to be clear, what happens is I click 'export' and it never actually appears. This is on Windows (also java 8).

As a further update, even with just a minimal instance -- forge 2705, Antique Atlas 1.12.2-4.4.9 -- the file chooser can fail to appear immediately after a new world (and atlas) is made.