Group library items limited to 25 ? (errors fixed)

I recently created a group "Molecular Anthropology of India ", and added 99 items into it. After that i synced it. now my group library shows only 25 items, which were added last (ie last 25 entries out of 99). I see all 99 items in my local computer Zotero pane, but not in the group library. Why is this?
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