Text Size Resets

G'day,

I'm having an issue where everytime a select text to edit it, the test resets back to it's original size (I think it's default size, I can't be sure). I re-type the size in the box and hit enter to put the text back to the size a want it but when I select it again to edit, it just goes back to the original size.

Is there something I need to do in the settings to stop this happening? It is very annoying and making a supposedly easy task very inefficient.

Thanks,

Wade