Font Issue on Open beta 17

[xsaalm]

I'm running beta 17 on my OP3 and I'm having an issue regarding font no matter what font I choose while using Nova launcher it works perfectly but after a few mins it switches back to normal font on Nova and everywhere in the launcher even though I have selected 'condensed' to get the pixel feel. I reported this problem to Nova but haven't received any response since then. please help anyone?