ankha666

Ok, found it.

If there is no list at all defined in LIST BUILDING > Lists, then there is the bug. That is because ‘no list’ implies ‘no public list’, and the code in the newsletter\subscription\subscription.php file does not handle properly this case.

line 1419 should be: if ($lists.length > 0 && isset($attrs['layout']) && $attrs['layout'] === 'dropdown') {

instead of if (isset($attrs['layout']) && $attrs['layout'] === 'dropdown') {

I took a look at it. The Subscription page uses the <p>{subscription_form}</p> code.
In the SUBSCRIPTION FORM FIELDS AND LAYOUT > Main profile fields, there is nothing special

https://www.vekn.net/tmp/subplugin1.png

However, the generated form has an extra field called ‘tnp-lists’ that has no options

<form method="post" action="https://www.blackchantry.com/?na=s">

<input type="hidden" name="nr" value="widget"><input type="hidden" name="nlang" value=""><div class="tnp-field tnp-field-firstname"><label for="tnp-name">First name</label>
<input class="tnp-name" type="text" name="nn" value="" required=""></div>
<div class="tnp-field tnp-field-surname"><label for="tnp-surname">Last name</label>
<input class="tnp-surname" type="text" name="ns" value="" required=""></div><div class="tnp-field tnp-field-email"><label for="tnp-email">Email</label>
<input class="tnp-email" type="email" name="ne" value="" required=""></div>
<div class="tnp-field tnp-field-gender"><label for="tnp-sex">I'm</label>
<select name="nx" class="tnp-gender" id="tnp-gender" required=""><option value=""></option><option value="n">Not specified</option><option value="f">Woman</option><option value="m">Man</option></select></div>
<div class="tnp-field tnp-lists"><select class="tnp-lists" name="nl[]" required=""></select></div><div class="tnp-field tnp-field-profile">...</div><div class="tnp-field tnp-field-button"><input class="tnp-submit" type="submit" value="Subscribe">
</div>
</form>

https://www.vekn.net/tmp/subplugin2.png