Cryptommate usage in Nuke from Corona renderer

[MikhalenkaA]

Hello. Recently cryptomatte was added into Corona renderer. But when it rendered with option "Render only masks" it' cannot be used in Nuke, as it look black. in official help of Chaos Corona I see that it shoud work properly even with Render only masks option. Maybe problem on side of cryptomatte in Nuke? I use NukeX10.5v2