Text inputs in other very similar forms are working fine, I can't figure out what's wrong with this one.
<input type="text" name="brand" id="brand0" value=" " class="ui-input-text ui-body-null ui-corner-all ui-shadow-inset ui-body-c">
<form action="shopping.php" method="post">
<input type="hidden" name="pk_item_store" value="0">
<input type="hidden" name="pk_items" value="1839">
<input type="hidden" name="pk_stores" value="40">
<input type="hidden" name="item" value="Flour, GF, Sorghum">
<div data-role="fieldcontain" class="ui-field-contain ui-body ui-br">
<label for="aisle0" class="ui-input-text">Aisle:</label>
<input type="number" name="aisle" id="aisle0" min="0" max="10000" step="1" value="0" class="ui-input-text ui-body-null ui-corner-all ui-shadow-inset ui-body-c">
</div>
<div data-role="fieldcontain" class="ui-field-contain ui-body ui-br">
<label for="brand0" class="ui-input-text">Brand:</label>
<input type="text" name="brand" id="brand0" value=" " class="ui-input-text ui-body-null ui-corner-all ui-shadow-inset ui-body-c">
</div>
<div data-role="fieldcontain" class="ui-field-contain ui-body ui-br">
<label for="pkg_qty0" class="ui-input-text">Pkg Qty:</label>
<input type="number" name="pkg_qty" id="pkg_qty0" min="0" max="1000000" step="any" value="1" class="ui-input-text ui-body-null ui-corner-all ui-shadow-inset ui-body-c">
</div>
<div data-role="fieldcontain" class="ui-field-contain ui-body ui-br">
<label for="pkg_size0" class="ui-input-text">Pkg Size (lbs):</label>
<input type="number" name="pkg_size" id="pkg_size0" min="0" max="1000000" step="any" value="0" class="ui-input-text ui-body-null ui-corner-all ui-shadow-inset ui-body-c">
</div>
<div data-role="fieldcontain" class="ui-field-contain ui-body ui-br">
<label for="pkg_price0" class="ui-input-text">Pkg Price ($):</label>
<input type="number" name="pkg_price" id="pkg_price0" min="-150" max="1000000" step="0.01" value="0" class="ui-input-text ui-body-null ui-corner-all ui-shadow-inset ui-body-c">
</div>
<div data-role="fieldcontain" class="ui-field-contain ui-body ui-br">
<label for="pkg_shipping0" class="ui-input-text">Pkg Shipping ($):</label>
<input type="number" name="pkg_shipping" id="pkg_shipping0" min="-150" max="1000000" step="0.01" value="0" class="ui-input-text ui-body-null ui-corner-all ui-shadow-inset ui-body-c">
</div>
<div data-role="fieldcontain" class="ui-field-contain ui-body ui-br">
<label for="pkg_tax0" class="ui-input-text">Pkg Tax ($):</label>
<input type="number" name="pkg_tax" id="pkg_tax0" min="0" max="1000000" step="any" value="0" class="ui-input-text ui-body-null ui-corner-all ui-shadow-inset ui-body-c">
</div>
<div data-role="fieldcontain" class="ui-field-contain ui-body ui-br">
<label for="tax_rate0" class="ui-input-text">Tax Rate (%):</label>
<input type="number" name="tax_rate" id="tax_rate0" min="0" max="500" step="any" value="0" class="ui-input-text ui-body-null ui-corner-all ui-shadow-inset ui-body-c">
</div>
<div data-role="fieldcontain" class="ui-field-contain ui-body ui-br">
<fieldset data-role="controlgroup" class="ui-corner-all ui-controlgroup ui-controlgroup-vertical"><div role="heading" class="ui-controlgroup-label">Data Mode:</div><div class="ui-controlgroup-controls">
<div class="ui-radio"><input type="radio" name="data_mode" id="data_mode_18391" value="Create Item Store" checked="checked"><label for="data_mode_18391" data-theme="c" class="ui-btn ui-btn-up-c ui-btn-icon-left ui-btn-active ui-corner-top"><span class="ui-btn-inner ui-corner-top"><span class="ui-btn-text">Create Item Store</span><span class="ui-icon ui-icon-ui-icon-radio-off ui-icon-radio-on"></span></span></label></div>
<div class="ui-radio"><input type="radio" name="data_mode" id="data_mode_18392" value="Create & Buy Item Store"><label for="data_mode_18392" data-theme="c" class="ui-btn ui-btn-up-c ui-btn-icon-left ui-corner-bottom ui-controlgroup-last"><span class="ui-btn-inner ui-corner-bottom ui-controlgroup-last"><span class="ui-btn-text">Create & Buy Item Store</span><span class="ui-icon ui-icon-ui-icon-radio-off ui-icon-radio-off"></span></span></label></div>
</div></fieldset>
</div>
<a href="shopping.php?pk_items=1839&page_mode=Full Item" data-role="button" data-theme="c" class="ui-btn ui-btn-up-c ui-btn-corner-all ui-shadow"><span class="ui-btn-inner ui-btn-corner-all"><span class="ui-btn-text">Minimum price: $2.01/ lbs at Bob's Red Mill</span></span></a><div data-role="fieldcontain" class="ui-field-contain ui-body ui-br">
<div data-theme="c" class="ui-btn ui-btn-up-c ui-btn-corner-all ui-shadow"><span class="ui-btn-inner ui-btn-corner-all"><span class="ui-btn-text">Submit</span></span><input type="submit" value="Submit" class="ui-btn-hidden"></div></div>
</form>