Comparing current date to multiple entry matrix date fields
I think you've just got a logic problem.

{% if entryStart &gt;= present and entryEnd &lt;= present %}


The only way this will ever evaluate to true is if the entryStart and entryEnd DateTime fields have the exact same date and time (down to the second) that the present time is, which seems like a very small window.

You're essentially looking for an entry that lives in the future and in the past.