There is a bit on fixing this sort of thing at:
As noted there you need to expand any strokes and union them:
Once this is done, union the paths:
Repeat this as needed until there are no open strokes.
There is a bit on fixing this sort of thing at:
As noted there you need to expand any strokes and union them:
Once this is done, union the paths:
Repeat this as needed until there are no open strokes.