P011001

Interruption point without device tag

P011002

Interruption point without counterpiece

P011003

Interruption point without target

P011004

Connection via interruption points on the same page

P011005

Arrowheads at cross-referenced interruption points do not match

P011006

Ring connection for interruption point

P011007

Branch before a star source

P011008

Several star sources with the same device tag