Hello, I found that this method matches black results when there are only two images of this input.。。

[chenkangjie1123]

Hello, I found that this method matches black when there are only two images of this input. This is only normal if the number of input images is sufficient.

The black mask image above corresponds to the RGB image below

[hkchengrex]

Thank you for reporting.

To clarify, it works if there are three images? like, if you duplicate the last image? It might be a bug in this case. I can check later.