CzP09 tactical not cycling with can

So I have a Silencerco hybrid 46 that I run on my long guns and shorties. I recently bought the 9mm pistol piston so I coul also run it on my CZP09 tactical. Problem is, it won’t cycle. Super quiet, but I have to rack the slide every time. Am I missing something? Anyone else seen this? Do I need to change out my spring, or….?

Is the fixed spacer or piston spring installed. The later is for non blowback pistols.

Will need to look again. I know I had a spring installed, yes. Came with the pistol kit for 9mm

If you don’t have the Neilsen device (spring) installed, it won’t run.

I had it installed. Looking around it seems the p09/p10 have had some issues running suppressed. Couple hundred round break in needed with suppressor on, or changing springs in gun needed sometimes