Would you please send the file to support@carbide3d.com or attach it here and someone will look at it.
Or, as I suggested, describe step-by-step what you did — I suspect it’s a bug in how Carbide Create calculates V-carve paths, since you mentioned “larger project”. An unspoken limitation of V-carving in Carbide Create is that it assumes that the widest point of the area to be carved is narrower than the widest point of the V-bit (and I don’t think there’s an option to inform Carbide Create of that — the stock material also needs to be thick enough to accommodate the V-cut and I don’t think there’s a check for that.
Doing a V-carving tutorial similar to: Carbide Create tutorial --- tracing a photo which hopefully will help us all to understand this and get this aspect of the documentation nailed down.