Hi,
I applied the Security Update for Helix Ultimate last week. The Framework and Template are now version 2.2.8 on my two Joomla 6.1.2 websites, and one Joomla 5.4.7 website.
After applying the website, I noticed the pages were "pulsing" on all three websites. The page displays, then dims slightly and displays again, so it looks like a single "pulse" or refresh.
I'm using JCH Optimize, but I disabled the cacheing and the pages still "pulse".
I've confirmed the effect on my Chrome and Mozilla browsers on Windows 11. Other Joomla Australia colleagues have also confirmed the "pulsing" on their various browsers and operating systems.
The websites weren't "pulsing" before last week's update, so I hope it's something simple to fix. I've provided login credentials for one of my Joomla 6 websites to help you identify the problem.
Regards, Robert