That's how you usually replace that seal so that's ok. My guess is the issue will go away. It's my experience that any thing over the half way mark on the oil dipstick is over filled on an airhead. They almost all seem to just use oil until it gets down to half then it stops.
"Between two explanations, choose the clearest; between two forms,
the most elementary; between two expressions, the shortest."
Between two motorcycles the simplest (DW)
Eugeni d' Ors (1881-1954); Spanish writer.