Siggy File Type?

[Spearmint]

Does a siggy have to be a certain file type to work? I've got the right size, but my old sig is only showing up no matter how many times I delete and change it

 

[AussieBird]

Have you tried clearing your cache? That's generally responsible.

 

[Macawnutz]

This is what I see.

 

[Spearmint]

View attachment 433977
This is what I see.

Oh? It doesn't show for me. That's the new one. Oh well

 

[Shezbug]

Oh? It doesn't show for me. That's the new one. Oh well

It has just started showing on my devices, it was not earlier but is now.