Are you using the latest version of BatchPatch?
This sounds like a bug, but I’m not able to reproduce it. Feel free to contact us directly to share with us a .bps file where this happens. Then we can try to reproduce it. My guess is that if you are using the latest version of BP, then this bug/issue is probably somehow connected to the particular .bps/grid. That is, I can’t reproduce it in my test grid here now, but I suspect that if I try with your grid that the problem will manifest, and then we’ll be able to track down the cause and fix it. If you are not using the latest version of BP, then first try the latest version and see if you still have the issue.