Hello,
Thank you for reaching out.
The Joomla Media “Maximum Size” setting only applies to uploads through the Media Manager. The Custom Font upload section in SP Page Builder uses its own uploader, so changing that setting or the PHP memory_limit may not affect it.
Since you have already tried adjusting the server limits and it still shows “Max Size Limit Exceeded,” we need to check the uploader configuration directly on your site to identify what is causing the restriction.
Could you please share temporary administrator access to your Joomla backend using the hidden content section by creating new post? Also, kindly make a full backup of your site before sharing access.
Once we have access, we will investigate the issue further.
Best regards.