One key success to applique in the hoop is to remove fabric fray and threads before initiating the cover stitch. Once the applique fabric is trimmed, closely to the Tack Down stitches, make sure all the fabric frays and threads are removed from the background fabric. Then return the hoop back to the embroidery unit to complete the cover stitch.
My suggestion (and the way that I do it) is to use tape to pick up the fabric frays and threads. This is a quick and easy way to clean up your project before the cover stitch. Just so you know, there are more fabric frays and threads when using loose weave fabric versus a batik.
To achieve a clean satin cover stitch, remove all the fabric frays and threads after trimming the applique fabric.
This is a sashing block from Bountiful Blessings 1 design which is available from Anna’s Awesome Applique Designs.