In the Create-event of my object for water I set the sprite for the top of the water to live like so: sprite_set_live(spr_water_top, true);

The game starts when I run it and after a few seconds, the 9 slice gets stretched out instead of repeating like it does without live reload.

The sprite is setup as follows if that makes a difference for the bug: All guides are set to 0 and the center slice is set to tile mode "repeat".