Error while boolean

ON_Brep.m_T[4950].m_type = ON_BrepTrim::seam but m_iso is not N/E/W/S_iso.

Do you know that line of error ?
Thanks a lot

Can you please send a small file with the two objects you’re trying to Boolean, with the details of exactly what you’re trying to do, so we can duplicate the error here?

Solved! Thanks!