This is why I tell them not to glue in my inserts on my axis arrows. No matter where I bought them they always did something wrong. Inserts not deep enough, didn't clean inside of shaft before installation, or got too much epoxy on the inside of shaft where the shaft of the points go. The axis shafts come with the epoxy so it is very easy to do it yourself. Just make sure to use the chamfer stone so points sit flush.
I believe demontang is right, probably too much epoxy on the inside of the shaft where the point shaft sits. I would get some very fine sandpaper, roll it into the diameter of the inside of the shaft and sand the inside very small amounts until the points go in easily. It won't take much. I had it happen to me once and this fixed it. Since doing them myself, never an issue.