NO ... you do NOT need the Home & Business version ... and the Deluxe & Business will cohabitate on the same computer at the same time ... they have each and every other tax year ... so it could be a bug because the 2019 program is not fully functional so you may need to try again later ... the 2019 programs will not be fully functional until sometime in January and you cannot file until then either OR contact TT support again and ask for a manager who knows both can be installed at the same time.
