Yes, that could result in a malfunction. Your tab does not protrude far enough forward. The tab should release disconnector, before the striker crosses the sear on the way forward.
For some reason, most of the tab jobs I have seen, and nost of the tabs for sale, seem to run the ragged edge of minimum length. When i tab my own rifles, I run the tab at the maximum length, just so it doesnt hit magazine, and never have problems.