I'm studying the Tilemap Destruction example ( https://editor.construct.net/#open=tilemap-destruction trying to see if it would be possible to have two instances of the destructible tilemap on the same layout. I noticed that with just one layout-sized destructable tilemap, on large layouts the performance starts to lag, so having two (or more) strategically placed smaller destructible tilemaps would probably be more efficient. However I'm unable to get this to work with two instances of the tilemap, or even with just one instance if I set the position to be something other than default X 0, Y 0 (for example X 80, Y 0). Some tiles are still being destroyed, but not the ones overlapping with the created blast circle.
I've tried several different things with varying results but none that work correctly with multiple destructible tilemaps or tilemaps placed at different positions on the layout. Any ideas on how this could be solved?