Hi, I created a new font that I name Indigarin. I have completed the font. However, when I installed the font and used it, something happened. After I pressed space, the font changed to Times New Roman. Please help me.
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In Font Properties, Ranges, use the Calculate buttons to calculate the Unicode ranges and Character Sets.
Reinstall the font and try again.
Also ensure you have a space character.
It still happened. 
I do have the space character as well.
Can you please send us the font project along with a document which show when things goes wrong?