[2020] Keener Mission - Launcher disappears

Played Liberty Island just now as I'm farming Assault Rifles for the 3rd month in a row (different subject, my bad) and the launcher along with the weak points disappears and I'm unable to shoot the weak points. It will pop in and out depending on my position and which way I'm looking, but especially with the final weak point the launcher would not pop back in and allow me to complete the objective before time ran out. This mission in particular seems so completely broken, and now I can't farm Assault Rifles because I can't complete the one mission that has AR's as targeted loot. C'mon man!