[spdbrake]

It appears you have a wicking action in the braids originating at the lower fittings. (wicking upwards)

The left side appears a bit worse as it also extends downward into the 90 elbow.

Typically these type leaks are introduced during assembly. If the hose is not fully screwed into the locking collar (counter-clock wise until it contacts the upper fitting threaded area and then backed off a 1/4 turn) the hose backs out during fitting screw-in. (placing a ring of electrical tape at the base of collar-hose area can help show movement).
Make sure there is a slight gap (daylight) between the Fitting once screwed in and the collar 1/32" non-swivel. 1/16" on swivel fittings.

Or you could take the hoses out out and rigging some reducer fittings up (cap one end) and applying max shop air to pressurize the hose. Then apply soapy water solution to the outer hose. The Air more readily leaks out.