Mine developed the same problem, not nearly as soon as yours but pretty early on. The seal on the end of the valve housing promptly extruded and failed, trapping the nose of the cartridge. There’s no getting around pulling the valve. If you manage to free the cartridge, the problem will either immediately repeat or the valve will leak, or both.
Get a -009 O-ring in 90 durometer (polyurethane preferably or Buna-N a close second) and pop out the bad seal and put the O-ring in its place. This rifle is super easy to disassemble. You will have it mostly apart but it’s easy to do.
I can mail you an O-ring if you want to PM me your address.
Apply a very thin film of silicone oil on the nose of each cartridge to minimize the ongoing chance of sticking. Not even a drop. Just wipe on a thin film with the end of your finger.