I try to enter Level 2 ... but it's still Level 1?

My first Level is complete. I created the Tile Warp to Level 2, but play-testing led me to a blank grey area.

When I 'cheated', I found that I could go to 'Level 1' in the same location on the Map. How do I make that location Level 2?

(2.5)

Is the slider in your second Dmap at the correct place? You can see the 8x8 screen area that the DMap represents in the menu, and you can change which 8x8 area the DMap uses by sliding the tic to the left and right. Make sure you can see the screens for your second dungeon in the window (It helps to have screens of different dungeons displayed in different colors for this) and then determine the warp target accordingly.

It was scrolled correctly ... but I did find the problem.

I thought, when setting Tile Warps, that you set the location as determined by the Map, not the DMap itself. Once I changed that, it worked fine.

Good to know.