Strange behavior in segmentation editor

Sometimes when I use mask volume under the segmentation editor, the output volume option behaves weird that neither existing volume nor creating new volume can be chosen. Instead, only a option called “scene” can be selected, as shown below.

Normally, it should behave like the following image that you can choose the output volume from your existing volume loaded. Only closing the 3D slicer app and reopen can solve the problem. But it means that I would lose my edited segmentation.

I do not know if this is a bug or my mis-use. Thank you

The latest stable version is more than a year old. Can you please test it with the latest preview version? We only do fixes in the latest version and 5.0 stable will be released very soon. Thanks!