Unable to input the commonly used dimensions for TikTok, it will automatically change to other dimensions

[cardenluo]

[halr9000]

I suggest grabbing one of the many aspect ratio custom nodes out there like comfyroll, then convert width, height, and batch size fields to inputs, and wire it up like so:

Then choose one of the presets, or custom and like you want:

Edit: you convert the input by right-clicking in the node:

[cardenluo]

Thank you for your concern. comfyroll is good way to solve the problem.