Preload cache option not working correctly

it is not related to the preload feature. can you tell me the url please?

Thanks for your quick reply. Yes, I just saw that as well. Even with the option being disabled the mobile theme still loads with the desktop layout for first time visitors, unfortunately.
This is the website url: https://beats24-7.com
It looks like this on first load https://prnt.sc/wfkh5u but should look like this https://prnt.sc/wfkhgx

Thanks again

Edit: Could this be an issue because of the ‘Varnish cache’ on my server? I disabled it for now.

Unfortunately, I have even another issue when your cache is enabled. My ajax search isn’t working correctly anymore. When I disable caching it is working fine: https://www.dropbox.com/s/0cgxkgohprbrj9w/Martfury%20-%20Ajax%20search.avi?dl=0
I think I will have to look for a different caching plugin. Thanks though

you should not use more than one cache system so you cannot use the varnish cache.

is the Ajax problem solved when you clear all cache?

Ok. The varnish cache was enabled by default on my server.
The ajax issue is solved if I disable your plugin’s caching (varnish was disabled). Without your cashing and only the varnish cache, it’s working fine.

1. disable the varnish cache
2. add the cloudfalre integration as below
https://www.wpfastestcache.com/tutorial/wp-fastest-cache-cloudflare/
3. clear all cache
4. please do not do anything until I reply

That’s what I already did yesterday. I already have the CF integration in place and disabled varnish. I also deleted the cache several times. The ajax search still didn’t work properly though. Thanks again.

wpfc is not active now so I cannot test it.

You can test it on my staging site: https://woocommerce-517141-1681018.cloudwaysapps.com/
To access the site you need user hmnsvavhud and YvyJW89N68 as pw.
I don’t really want to disable varnish though as it really saves some bandwidth on the server side. WP rocket f.ex. has a Varnish Add-on and works together with Varnish. Thanks again!

it works.

Not for me https://prnt.sc/whrypn

The problem is caused by wp nonce security system. You should set a cache timeout rule as below.
https://www.wpfastestcache.com/tutorial/wordpress-nonce-cache/

I set the cache timeout rule but that doesn’t help either. If I delete the cache it is working for a few times but if you then go back to the homepage a second or third time, the search is blocked again.

WP_CRON may have been disabled. you can try to clear cache as below.
https://www.wpfastestcache.com/features/clear-cache-via-url/

By the way, did you try another cache plugin? are you sure that your site works with the cache plugins?

Automatic crons are disabled but manual cron jobs are executed every 30 minutes.
The search was working fine again today because the cache has been deleted by the timeout rule. However, this helps only once and if you revisit the homepage it stops working until the cache gets deleted again: https://www.dropbox.com/s/5gvst9z6sh75nqm/Cache%20issue.avi?dl=0

No, I didn’t extensively test this with other caching plugins. I tested W3 total cache but it was a bit bulky and that’s why I chose your plugin. It seemed the perfect combination of easy management and features. Too bad it won’t work with my site. I appreciate your help though. Thank you very much again.