Tile Tutorial - Slow to load - always on top

Quick question:

Tutorial works great. I only changed the size from 34 x 34 to 10 x 10. Everything else remained the same. I’m not sure if this is supposed to happen, but it literally takes almost a minute to load/publish preview.

One other thing. I have it on the very first layer. I have some simple text on top and it doesn’t show.

My expertiese in AS is vast. I know enought AS to make a button. :pleased:

Any ideas?

Thank you.