I'm empathizing, yes, the stuff is too thick to be normal oil and if the motor wasn't fired up, what ever it is, it isn't what we would call an oil leak.
You still haven't said what you did with the motor from the time you changed the seal to when you saw this stuff.
I'm jumping to: you pulled a bolt and old gue came out and is just seaping with gravity, maybe enhansed by the thinning of break cleaner. Probably a bolt that goes through to the oil sitting in the timing chain gallery:
maybe the bolt that holds the FI pipes at the front of the head. It plugs a hole for a timing chain gear tensioner? Did you put the bolt back in?
For sure follow gravity up behind the pump with a bright light.