I personally do not have a system that can run Aldiko so I can test for this issue. However I would strongly suspect it is an Aldiko issue.
Another reader app (Quickreader on Apple devices) exhibited similar behavior. As I had contact with the developer, I was able to give him access to my personal ebook library so that the problem could be investigated. Once this was done, the problem was quickly identified as a bug in the Quickreader code for processing the link to the next page as there had been a small (legitimate) change to the URL format introduced as part of conforming to the latest OPDS speification. The latest version of Quickreader incorporates this fix and now handles the next page perfectly when working with calibre2opds catalogs.
I suspect that Aldiko has a similar bug that will need fixing by the developer.
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