Album mode not available after upgrading

Hello, i have a Joomla 3.X installation with BaGallery 2.3.0 installed, and I just upgraded it in a test environment to Joomla 4.X and updated BaGallery to version 2.3.6.
In the former installation it displayed the 3 categories with a thumbnail and when the visitor clicked on one of these, they could see the images displayed in that category. After the update, all categories' images are displayed. Moreover, I no longer see the "Album Mode" option in the General Settings.

Has the Album Mode been discontinued or is there something wrong with the particular installation? Thanks in advance for your time and efforts.

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