Why am I only seeing a line on the map art of 3d revolve options?

[sreepradd]

Shouldn't I be seeing a waveform on a grid?

I was seeing the normal form, but then suddenly this occurs. No change was seen after restarting my laptop nor reopening the program.

slides 1, 6 appear like this while 2-5 are as they should be

[Doug A Roberts]

What object are we looking at?

[sreepradd]

semicircle- to revolve it to a circle and apply a symbol over it. ive done it before, and was doing it now until suddenly this occurred

[Doug A Roberts]

Can you show a screenshot of your object and the 3D options?

[Ray Yorkshire · Accepted solution]

Maybe start again.

Draw a circle, deselect

Use the Direct selection tool (white arrow) to select one of the side anchor  points and then delete that.

Give it a fill no stroke

Effect > 3D > Revolve.

And when mapped it should have one surface.