My last couple of posts have been about Helen's 270 issue when isolating a Stitchworld tuck stitch pattern. Here is her latest email in reply to your help:
Yes, the tuck needles are in D position, the non tuck needles are automatically put in B position when isolating.Already changed the end needle to be in work under the carriage. Tuck does not work in D position. Reverse button puts the needles in position for slip stitch.