List and detail Single item URL incorrect from Editors panel

it's set as a backslash /

note another list and details single item URL on the same site is working perfectly

And weirdly the search result are showing the correct URL using dress-{slug}

If similar template is working elsewhere then perhaps it's this list detail template has an issue?

<h1><perch:content id="title" type="text" label="Dress Name" required="true" title="true" help="Make sure this name is unique!" /></h1>

<div class="bridespicblock">
    <div class="bridespic"> 
        <img src="<perch:content id="image" type="image" label="Main Product Image" width="640" bucket="dresses" help="Add a primary image to display at the top of this product page" /> "alt="<perch:content id="imgalt" type="text" label="Alt text" />" class="BrideImgBig" /><img src="<perch:content id="image2" type="image" label="Image Two" width="310" height="310" crop="true bucket="dresses" divider-before="Optional extra Images" />" alt="<perch:content id="imgalt2" type="text" label="Alt text" />" class="BrideImg2" /><img src="<perch:content id="image3" type="image" label="Image Three" width="310" height="310" crop="true" bucket="dresses" />" alt="<perch:content id="imgalt3" type="text" label="Alt text" />" class="BrideImg3" />
    </div>
    <div class="bridecaption">
        <p><perch:content id="caption" type="textarea" label="Image caption" size="xs" help="Say something nice to summarise these images - limited to 40 words" words="40" /><p>
    </div>
</div>

<div class="bridestory">

<perch:content id="desc" type="textarea" label="Description" textile="true" editor="markitup" imagewidth="640" imageheight="480" size="m" divider-before="Page Text Section" />

<hr>
<ul class="speclist">
    <li><p class="spec"><span class="specname">Silhouette: </span><perch:content id="Silhouette" type="text" label="Silhouette" size="xl" divider-before="Specifications" /></p></li>
    <li><p class="spec"><span class="specname">Neckline: </span><perch:content id="Neckline" type="text" label="Neckline" size="xl" /></p></li>
    <li><p class="spec"><span class="specname">Style: </span><perch:content id="Style" type="text" label="Style" size="xl" /></p></li>
    <li><p class="spec"><span class="specname">Fabric: </span><perch:content id="Fabric" type="text" label="Fabric"  size="xl" /></p></li>
    <li><p class="spec"><span class="specname">Colour: </span><perch:content id="Colour" type="text" label="Colour"  size="xl" /></p></li>
    <li><p class="spec"><span class="specname">Size: </span><perch:content id="Size" type="text" label="Size"  size="xl" /></p></li>
    <li><p class="spec"><span class="specname">Options: </span><perch:content id="Options" type="text" label="Optional Extras"  size="xl" /></p></li>
</ul>


<perch:if exists="price">
<hr>
<p class="price">Price: £<perch:content id="price" type="text" label="Offer Price" format="#:2" help="Display an optional price." size="s"  divider-before="Price and Equire Button" /></p>
<hr>
<perch:else />
<hr>
<p class="price">Price: £ P.O.A.</p>
<hr>
</perch:if>


<perch:if exists="showbutton">
    <form action="contact.php" method="post">

        <p class="smalltxt"><perch:content id="showbutton" type="checkbox" label="Show Button" value="Enquire about this product" help="Tick this if you want an enquire button to take information to the contact form" /></p>
        <input type=hidden name="stock" value="<perch:content id="title" type="text" label="Product title" />">
    <input id="sendbutton" class="SndBtn" type="submit" name="Send" value="Enquire →">
        <hr>
    </form>
</perch:if>




<perch:content id="slug" for="title" type="slug" suppress="true" />
<perch:content id="image" type="image" label="Thumbnail Image" width="300" height="468" crop="true" suppress="true" help="Add a Thumbnail image for the product list" />





<perch:categories id="Work" label="Product Type" set="collections" display-as="checkboxes" help="Select which collection this dress should be in" divider-before="Categories">

<perch:before>
    <h3>Collection</h3>
    <ul class="prodcats">
  </perch:before>
      <li><a href="/category.php?cat=<perch:category id="catPath" />" class="HomeBtn SmallBtn"><perch:category id="catTitle" /></a></li>
  <perch:after>
    </ul>
  </perch:after>
</perch:categories>
</div>

It's the 'view page' link from the control panel to preview the detail page of a list and detail setup.

This list and detail page is using categories so I assume the problem could be do with that and how I've cleaned the URLs?

Elsewhere on the site a basic list and detail page "without categories" is working correctly.

...aaagh which it was. I found "my" error. no slash in /dress-{slug} sorry.

Amazing how contacting support focuses the mind. Or the little mind I've got left on a Friday afternoon.