Smart Slider 3 Images Disappearing

  • Resolved thiartj

    (@thiartj)


    10 months, 2 weeks ago

    Good day, we updated WordPress recently and Smart Slider slides started to randomly disappear. We have tried various options such as “use Iframe in Ajax Calls” and Enabled / Disabled Header Preloads to check if problem goes away. All images on the slider are .webp formats. When we clear the Smartslider cache or W3 Total Cache the slider sometimes return to normal and sometimes not. It is really random. When we downgrade manually to a previous version Slides will also work for a day or 2 then disappear again. Then we force a manual upgrade again and it will work again. Please advise

    The page I need help with: [log in to see the link]

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  • Plugin Support Laszlo

    (@laszloszalvak)

    Hi @thiartj

    I checked the linked page, but currently the slider appeared fine for me, even after refreshing the page multiple times.

    Anyways, what you are describing sounds like a caching issue or an SSL issue.

    As you noticed, the slider also has its own caching. Basically we are caching the HTML of the slider, and we display the on the frontend. So if somehow the URLs of the resources in the cache are wrong, then the we will try to display those until the cache gets regenerated.

    What I suspect is that, you or somebody else might accessed the site from an URL that your SSL is not valid for and the slider cache gets generated on that URL. So when you access your site on the proper URL, our resources can not be loaded as your SSL is not valid for those URLs that our cache contains.

    The reason I suspect this is because, if I type anything random before your site url, e.g.:

    • asd.yourdomain.co.za

    the browser will redirect you to an URL like this:

    where the browser will display a certificate error but if you proceed the page will load regardless, meaning that it has a chance that the slider cache gets generated there.

    So in the first place you should fix the core problem that your site can be accessed from all kinds of URLs. Typically this problem can happen when you have the WP_HOME and WP_SITEURL constants defined somewhere ( usually in the wp-config.php ) with wrong patterns. You can confirm this if you go to:

    • WordPress > Settings > General

    and you check if the “WordPress Address (URL)” and “Site Address (URL)” fields are editable or not. If they are not, then most likely you have those constants defined somewhere wrongly.

    If you fixed this problem ( so your site can only be reached from URLs that your SSL is valid for ), and you still see the problem even after that, then please let us know. However make sure you won’t clear the cache or anything, as we will need to take a look at your site while the problem occurs.

    Best regards,
    Laszlo.

    Thread Starter thiartj

    (@thiartj)

    Thank you for pointing me in the right direction. I noticed now there is a DNS Record called *.domainname.com which points to server ip address, which i think causes any.domain.com to be redirected to server as insecure SSL. Could not find any .htaccess redirect rules. The DNS Record has been removed and I will check tomorrow after replication completed if site only accessible with the SSL Certificate Domain name. If the problem still occurs I will leave it as is to enable you to check the issue and post another comment to check thank you

    • This reply was modified 10 months, 2 weeks ago by thiartj.
Viewing 2 replies - 1 through 2 (of 2 total)
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