Good evening I'm installing an IKEA pax wardrobe onto drywall attached to cinder block. I've successfully used a tapcon in 5 of the 6 attachment holes. The 6th tapcon gets 90% of the way in and then start spinning. I'm guessing that the pre-drilled hole has gone too far and penetrated completely through the block wall.
What are my options? Why isn't the screw tightening.
Your help is much appreciated.