Blizz ABS and map definement

[whitespirits]

So i started building some more maps and have come to realize that with blizz ABS maps have alot of problems, randomly some of my X on passability all of a sudden can we walked straight through and then at random other squares on the map just become unpassable? Is there any fix to this?

[winkio]

It's not Blizz-ABS, it's just mistakes in your passability.  Make sure that on the layers above you are using the clear tile in the upper left (I think it has max priority, but I might be mistaken), and not another clear tile.

[KK20]

If it really was BlizzABS, you could just move the scripts below 'Main' and run the game again. If the map problems still exist, it's not the script.

[whitespirits]

OK so i removed blizz abs and all worked perfectly, so then i went back to my project and used the top left corner square to define all the map spaces that are blank and it has worked, i think something in blizz abs must be more strict than without?