I found out this bug where if a form has a textarea field and some other field has an autocomplete attribute set, the textarea field will get predicted as an UNKNOWN_TYPE. If you either remove the autocomplete attribute on the other field or put one on the textarea field it works.

Example form:

<form>
First Name: <input type="text" id="fname" autocomplete="given-name"> </br>
Last Name: <input type="text" id="lname"> </br>
Phone: <input type="tel" id="phone" onkeyup="alert('KU')"> </br>
City: <textarea rows="4" cols="50" id="city" name="city"></textarea> <br>
State: <select name="state" id="state" >
	<option value="" selected="">Select State</option>
	<option value="1">NY</option>
	<option value="2">CA</option>
	</select> <br>
Address: <input type="text" id="address"> </br>
Email: <input type="email" id="email">
</form>