4L80e: no cooler flow

[gui67]

I installed my freshly rebuilt 4L80 in my car, but I saw that I have no flow flowing trough the cooler:
I removed the fitting (bottom front) and nothing comes out with the engine running.
I drove ~25 miles like that.
It is a 92 model with both cooler lines in the front. What could I have done wrong during the rebuikd?
I saw on the principle of operation that the lube comes from the TCC switch valve. The TCC is OK: it did work when I drove.
where does the cooled lube then go on a 92 model (the principle of operation manual is for rear return fitting models) Is there a risk I broke something?

I replaced the pressure solenoid during the rebuikd; I saw yesterday that there a 2 models: one with blocked tip and a second one with a filter on the tip. Is it possible to have these symptoms if I used the one with a blocked tip?

[gui67]

I looked at the hydraulic diagrams again:
is this scenario possible:
the pressure control solenoid is the wrong one(supposed), so there is no exhaust to decrease pressure, the boost valve is pushed by torque signal at the maximum and blocks the converter feed orifice:
with no fluid for the converter fluid, nothing flows to the converter and back to the cooler either.
I will take the pan out tomorrow and check the pressure solenoid, I hope it is the only problem.