Hey @Kevin Kho, I found a way of showing this issue. I have a flow where I removed the parameter "pgp_keyring_path". You can see in the image of the flow run schematic that parameter is not showing

But in the Parameters page in Settings, it does show up.

It also shows up in the Parameters section of the Flow Run details

I'll triple check though

Yep, it is the latest version

I actually could not replicate. I made a flow like this:

from prefect import Flow, task, Parameter

@task
def abc(x, y):
    return 1

with Flow("parameter-test") as flow:
    x = Parameter("x", 2)
    y = Parameter("y", 2)
    abc(x,y)

registered it and ran it. I then re-registered without

y

and the UI seems to show things properly. Do you have any advice how to reproduce?