Unfortunately, loop ileos are tricky
If I read this right, it's not the second hole that is the issue, right? I would definitely try more convexity...the reason I mention that is the process of pulling the stoma up/out can correct where the hole is. I have only had loop ileos and have to say that the one I have now (it's actually an end loop ileo) has been the toughest to figure out. It was also created by a different doctor than my first two and I think that makes a difference, too. I did find better wear time with extra convexity and switching brands to Coloplast Extended Wear...even though I only go about
3-4 days depending my activity level.
If it is the second hole causing the issues you can have it stitched closed which will keep waste from going in and eventually back out the way it came in.
Don't suffer...if you need a revision for quality of life, do it.