While looking closer at the latest Trailer I think I happened to stumble upon an error in the Mining animation. The marked white dot appeared everytime at the same position whenever the Mining Animation was nearly finished but only while the charakter was facing to the left side. think I found another 1 this time its not a animation but something on a map.
hehe thanks for pointing that stuff out Cygen. The white dot is the remains of a sweat drop that I didn't erase fully. The pier poles are just a mistake, could be something to the right of the pole on the tilesheet that crept over into the wrong square.