tested with 8.01:
Open a new document and paste these three lines:
** TEST !!!
Now goto start of the document and open find dialog with this regex:
There are three parts marked in green, but the last line is never selected when pressing “find down” multiple times.
I reproduced your issue, but this expression is confusing. Can you explain what you are really searching for? Is it possible to show me a simpler example? Thank you.