I recently installed the official beta patch from wa.team17.com. The new features and suchlike are all working fine. However, I can only play one game and after that (at the point it would go back to the frontend to allow me to change the map or whatever for the next game) it comes up with a fatal error which informs me about some junk and that detailed information is logged in ERRORLOG.txt. I know that it isn't anything to do with my game (I bought a legal copy on eBay) because the other patches worked with it. If anyone could please help me, it would be much appreciated.
EDIT: The beta patch version I am using is v3.6.28.0.

Please compress and upload the ERRORLOG.TXT file.

30385
okay, here it is.

I also have another problem - when I try to make a .png cavern map in a paint program with dimensions bigger than the standard 1920x696, it automatically converts it to an island map ingame, so even though the top and sides of the map are covered by terrain, outside of the terrain is viewable by moving the mouse, and it looks a little weird and is very annoying.

yes, thats most likely gonna be solved with configurable borders, IE: have a border on whatever sides you want one on and not have one on ones you dont want one on.

That comment was not particularly helpful.

One that might help you: When you load the map up in the editor you can force a border to be present on the map, there's an icon on the left hand side that will toggle it on and off.

Bear in mind, if it's on, all 4 walls are there, so you need to custom set the water level ever so slightly higher to allow worms to drown (if you want them to be able to drown), make sure you check it in-game so that the water doesn't cover too much of the maps floor.

Solution:
Right-click on the border toggle button and only the top border will be activated.

okay, thanks alot

EDIT: I now realize that my other problem (the game crashing) was not caused by anything to do with the patch. Everything is working fine. It may have been something to do with my computer yesterday, or else a random error (even though it happened several times).

EDIT: I am getting the same error again. It seems to happen randomly.