If you want an album to appear on all pages then the album's shortcode should be used in a widget. Normal text widget doesn't support shortcodes so you should use a widget plugin that supports shortcode.
BTW, I'm not sure about the multisite situation. You may need to create the album multiple times for multi site. Shortcode created for one site may not work on other site.
1 week ago
I test your plugin on the multisite platform.
I have over 1700 albums on one page
I would love to publish an album that would be visible to all pages.
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