Will fray check help?

I am a big believer in Fray Check for exactly this type of situation. I am never with out a bottle in my machine table drawer. Sometimes you just have to fray check it , and move on.
Note a little bit goes a long way. Use the tip to apply only in the seam allowance area. Put a small amount on the edge, and wait for just a few seconds as it will "wick" just a bit, before adding any additional. Do not iron Fray check while wet. Put enough to "coat" just the seam allowance area to the stiching line, do not go over , past the allowance as fray check does tend to darken the fabric .

I am with Patrice and Holice, when this happens it will throw off your block. Unfortunately it does mean some unsewing....

i made a reversible quilt similar to the
fun and Done and apparently i didnt have a very good seam allowance on the one side b/c i've had to repair it at least in a dozen places. if you can fix it now-do it

Yeah, I'd do it over, but also I'd be concerned that the block size would be off, if the seam is too small.

If the strip/piece was cut the correct size - then that shouldn't afflict the block size - and if it's left the way it is - the block seam will "bulge" there

There is a product named (I think) Fray Check. It comes in a small bottle with a tip. It might help

unusual for batiks to ravel so much. I would also quilt it heavily.

Have you thought of using "Fray Check" to seal the edge of the fabric?

I always use a smaller stitch than you are using, would be horrified if a seam came out. I give most of mine away, be sure to quilt over as many seams as you can.