I had two problems with my friendica installation. Using the Vier view with continuous scrolling, when it got down to where it loaded more messages, instead of displaying properly, it started another line shifted to the right like in the image below. Also, when comment preview was a no-op, and lastly when I posted, the little spinning icon would not go away until re-load.

In an attempt to understand what was going wrong, first, I was running an old composer, I updated to the current but got some errors in the process, so I ran composer diagnose to try to get some expansion on the errors. It told me that uopz module was not exiting on signal, so I removed it from my PHP configuration. After doing so all of these issues resolved.