I do not know if it is an error that was caused by some changes ours to PHP or other. But suddenly the custom fields do not load more automatically. For example on the Auto category, if I selected the Brand field and selected BMW in another field you boot

Now he doesn't do it anymore. I wanted to know but Osclass has limits on the amount of custom fields or not? If it has no limits then I have to check the errors in PHP

My website www.annuncigratuiti.com

I do not think there are any limits, just technical. Check your error log and browser console if it throws any error.