I had the same problem with the 1/8" cutting bit...when you get it out inspect the adapter closely for the 3 dimples caused by the spring loaded BBs. If the dimples are there the adapter is no good anymore.
I was given good advice when using the 1/8" cutting bit...set the Max Depth at .25" so there will be less side pressure on such a long bit. This is a new option in the latest version of Designer.
Rick P -- ( Designer v.1.187 + Rock + Dust Devil)
Carver in Minnesota
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