MIG_id not increasing properly

I'm using migX for some time now and it always worked like a charm for me, but now I have a problem that I can't solve by myself.
I have a migX variable with some fields, everything was working fine, but now, when I want to add a new row, it get's a value vor MIGX_id in the tmplvars table, that does already exist. In the example, there are already ids from 1 to 19, but when I add another row, it gets id 10.
Is there some way to manually change the id for the next new item?

Any help is appreciated.
With kind regards,
Marc

this should be fixed with this commit:
https://github.com/Bruno17/MIGX/commit/4867e8aa0231961d75be70e277ddf37d4ce99402

you can get it from github

Thanks for the very fast answer!
I patched my file according to your commit and everything seems to work properly.
Is it safe to assume that this will also be in the next official release?

yes, this will be in the next release

Thanks a lot!
MigX is a great (and widely appreciated) extra and you're doing very good support here in the forums. Keep on your good work!