Besides the limits set by your Lix package, there are parameters within LinkedIn which limit how much data can be exported. So, even on the Unlimited tier, one account can export up to 10,000 search results per day with a standard LinkedIn account (25,000 with Sales Navigator).
Similarly, you are limited to either 1,000 enrichments (also known as Deep Profiles) with LinkedIn standard, or 2.500 with Sales Navigator.
This is due to LinkedIn's daily pageview limits. You are only permitted to view a certain number of pages per day, and as Lix exports LinkedIn data from viewed pages, we must operate within those parameters to keep your account safe.
For more information on download limits, click here