Sprites displaying underneath the floor

[Guest]

Hello, i'm currently making a wad, and of course it will have custom enemies, but i'm having a little problem, the sprites are not displaying where they should be
they are appearing underneath the floor, the fix i currently found it was flipping the sprite up-side-down, and changing the scale on the decorate to a negative number
but it doesn't work that well, the sprite displays outside the hitbox that it's supposed to be fitted, and it looks so damn weird and ugly, the problem is even worse with projectiles
this only appears to happens with sprites that i created or added, but when i paste other sprites made by other people they display correctly

[Enjay]

Have you used a tool of some sort (e.g. Slade) to give your sprites suitable offsets?

[Caligari87]

To follow up, here is a tutorial about sprite offsetting, if needed.

[Enjay]

Heh, thanks. I had completely forgotten that I'd posted that. I was even thinking about recreating something like it (without realising that it would have been a re-creation).