Clip Volume not working issue

Hi,

I have an issue regarding the clip volume is not function when i open A model. The clip volume setting in view attribute dialog are missing.

However, when i open B model, it's worked and clip volume setting in view attribute dialog are shown.

Both models are in DGN.

May i have some advise for this issue due to i have really no idea about it.

1. In A Model Situation

2. In B Model Situation

Thank you !