Well, it was actually leaking out of the drier. It was a slow leak but manageable.
Then I noticed the metal flakes.
Soon after it ceased cooling but would not take anymore freon.
None of the rest of the system had any obvious leaks.
Also, when draining the freon, it was bright yellow green and was clumping.
Possibly a leak sealer.
It is also the leak sealer in combination with the metal flakes caused the clog.
Except for the new suction line, it was all original equipment.