Well, now it's time for you to determine which outcome is realistic.
Do your "short coppers" reveal their built-in R, L, C if you look
inside? Then, do those values comport with what you know about
your RF substrate (losses there) and layout geometry (R, L, C)?
You may have two "goalposts" here (no parasitics, and sandbagged)
with eventual, implementable reality lying between them.
Or, you could have introduced something new without meaning to.
That's plain good old fashioned detective work, as they say in the
movies.