What's happening?
When using the advanced lookup window for a Lookup field, additional data does not load upon scrolling down. Users experience this issue on different browsers, including Chrome and Edge.
Reason:
The out-of-box (OOB) control used for the lookup field does not load all data at once. It only loads a portion of the data, causing issues when users attempt to scroll down to load more data.
Resolution:
This is by design.