WP_Query Displaying Data Wrong on Tag Archive Pages

This is one of the oddest issues I’ve ever run into.

I’ve created an custom post type for top of the page alerts and placed the WP_Query call in my header.php template. It correctly displays on all pages except on a tag archive page. On tag archive pages, it pulls the query data from the advanced custom fields database fields. I’ve double checked the archive.php, custom post archive template, created a tag archive template and none of it seems to affect this issue.

For example on every page other than the tag archive page the WP_Query code renders like this:

<!-- ALERTS Start -->
<div id="alert-153" data-alert class="header-alert-box">
	<a href="http://example.com/ahpba-2015/">Click here to view 2015 AHPBA Lecture Recordings</a>
	<a href="#" class="close">×</a>
</div>
<!-- ALERTS End -->

But on the tag archive pages it renders like this:

<!-- ALERTS Start -->

<div id="alert-214" data-alert class="header-alert-box">

	<a href="#" class="close">×</a>
</div>

<div id="alert-211" data-alert class="header-alert-box">

	<a href="#" class="close">×</a>
</div>

<div id="alert-202" data-alert class="header-alert-box">

	<a href="#" class="close">×</a>
</div>

<div id="alert-201" data-alert class="header-alert-box">

	<a href="#" class="close">×</a>
</div>

<div id="alert-203" data-alert class="header-alert-box">

	<a href="#" class="close">×</a>
</div>

<div id="alert-208" data-alert class="header-alert-box">

	<a href="#" class="close">×</a>
</div>

<div id="alert-209" data-alert class="header-alert-box">

	<a href="#" class="close">×</a>
</div>

<div id="alert-210" data-alert class="header-alert-box">

	<a href="#" class="close">×</a>
</div>

<div id="alert-48" data-alert class="header-alert-box">
	a:7:{s:4:"type";s:3:"url";s:12:"instructions";s:0:"";s:8:"required";i:0;s:7:"wrapper";a:3:{s:5:"width";s:0:"";s:5:"class";s:0:"";s:2:"id";s:0:"";}s:13:"default_value";s:0:"";s:11:"placeholder";s:25:"https://vine.co/u/USER_ID";s:17:"conditional_logic";a:1:{i:0;a:1:{i:0;a:3:{s:5:"field";s:19:"field_54e3e971d7882";s:8:"operator";s:2:"==";s:5:"value";s:4:"Vine";}}}}
	<a href="#" class="close">×</a>
</div>

<div id="alert-56" data-alert class="header-alert-box">
	a:7:{s:4:"type";s:3:"url";s:12:"instructions";s:0:"";s:8:"required";i:0;s:7:"wrapper";a:3:{s:5:"width";s:0:"";s:5:"class";s:0:"";s:2:"id";s:0:"";}s:13:"default_value";s:0:"";s:11:"placeholder";s:28:"https://medium.com/@USERNAME";s:17:"conditional_logic";a:1:{i:0;a:1:{i:0;a:3:{s:5:"field";s:19:"field_54e3e972d7883";s:8:"operator";s:2:"==";s:5:"value";s:6:"Medium";}}}}
	<a href="#" class="close">×</a>
</div>

<!-- ALERTS End -->

This makes no sense to me, and I’m completely at a loss. I’ll happily provide any info anyone might want, does anyone have any ideas on how to fix it?