Yes, well there's a problem of some kind.

Firstly:
Did you try to manually tie the C note together from bar 8 to bar 9?

The upside down tie / slur is definitely no correct, so I was wondering if this was added by you or the program.
BiaB Should automatically add a slur to connect notes are meant to be played legato, even across bar lines.

Secondly:
And in more relation to your question, the line landing on bar 13 is even more unusual.

I would freeze all tracks (Play drop-down menu > Freeze All tracks) and send the song to PG Music Support.

You shouldn't need to add your own ties to connect notes, the program should add these for you.

However, to be absolutely sure, feel free to get PG Music to check also.

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