Oil spitting out from my breathers

As noted above the breather just allowed air in and out, so with blowby the only air movement is out, and with it some oil. It seems a bit odd that a new build would need 50 wt oil unless the gaps are set for it. Most new cars recommend 20W maybe 30W.

The question I have is does your new build have excessive blowby? Maybe rings have not set in yet?