Lutron Maestro CL Extreme Delay
See Lutron's list of compatible dimmable LEDs. Refer to pages 19-36 for the CL series dimmers.

I do not see any G7 bulbs listed. I would say either your bulbs aren't compatible with your dimmer, or you got a bad dimmer.

Try swapping out whichever is easiest (the bulbs or the dimmer) first, and if that doesn't work try swapping the other.