I am Japanese and I am using translation software.
Please forgive my poor English.

If you know someone who can help me, I would appreciate your help.

I have purchased 5 PTZ cameras with NDI function, called OBSBOT tail air.

And all of them were successfully connected with VMIX and NDI.

The first camera that connects to the PTZ function can preset the position. ......

After the second camera, all cameras are "able to connect to PTZ function" and "able to change PTZ position", but only "PTZ position preset" does not work.

To be precise, I can save presets, but they all come back to the home position.

Has anyone else suffered from similar symptoms?
If you know of a solution, I would appreciate your help.

Thank you in advance.

Translated with www.DeepL.com/Translator (free version)

Hi Kabachin,
this is very easy and work already within vMix. On the input PTZ page where you position your camera there is a button to create a virtual input. Click it for your different positions and use the virtual inputs you get no as a normal input. Once you click them the camera NDI feed changes to that input.

Hi Roy,
Have a look at https://monogramcc.com/ I use the orbiter for PTZ as an example. It supports working as a shortcut, midi, or joystick for every single entry option.