I know I have to do the radiant frames from ballistic logs to get credit for frames completed, but I've done 9 of them and only got credit for 5. The last 2 or 3 I've done I've gotten no credit for either. This is really annoying because at this rate I'll get the weapon in like 3 years. This also affects the bow quest.
-
There is no quest for the forge exotics. They are random drops when completing powerful weapon frames