Gallery in widget is not linking properly

Hello,
I’m trying to create a gallery in a widget but the custom links are not working. I’ve gone through all the trouble shooting tips I could find but no luck.
The only settings that seem to work in the gallery creation are changing from the attachment page or the media file. However when I provide a custom link it just opens the original images link. Also the field if it should open the link in a new window or keep the original one doesn’t seem to work as well.

This plugin is working on another page I have where the gallery is inserted into the page and not a widget.

Any suggestions on where I should go from here would be extremely helpful. Even if its just a workaround.

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