This just started recently for me. In Chrome, when reading a post that extends beyond the bottom of the screen, scrolling down to the point where “MODX Community” is replaced by the topic’s subject line makes “MODX Community” flash continuously between two locations. It’s a strobe effect and could possibly induce seizures in some readers.
In addition, if you scroll down slowly, the post will keep repositioning with the subject line showing, so you never make it to the end of the post unless you scroll fast. My mouse wheel is set to three lines. Using the mouse wheel slowly means you never get the see the end of the post. Using the scroll bar limits the effect to a single time, but you can still see it.
Thank you for reporting this. I started seeing it a few weeks ago (not sure if that is pandemic time or regular time honestly) and had been about to write it up. Seeing it in Chrome desktop as well as Chrome for Android.
On Chrome for iOS, when scrolling there is a distinct jump that the MODX Community bar makes ay one point, but it doesn’t flash back and forth.
This is probably just an CSS issue and maybe not related but the mentioned header has a top-margin set which I think shouldn’t be there? Atleast it wasn’t there before and creates an odd space between the top navigation and the header:
Thanks for reporting this, Bob. I’ve shared it with the team to review. Hopefully, we can get this resolved soon. The theme is one from Discourse itself that we replaced the logo and colours for.