Hi @battplus_eric, this happened to me. Eventually I realized that the magnetism of the tool is due to a small magnet in the tip and that it had fallen out. Sure enough, I found the magnet stuck to the back of a bit that I had put back into the case. If this happened to you, you might find my recent question useful: [post|873646]
If you unfortunately lost the little magnet, you might be able to salvage one from the case as they appear about the same size ([post|752487]).