Upgrading to Fedora 38

Upgraded from Fedora 37 to 38 following the standard instructions.  There were no errors indicated during the upgrade.  The packages was downloaded, installed and the system rebooted.   When I came back to the machine after the upgrade and got to the login screen, my USB mouse was functioning sporadically.  I could still log in with the keyboard but it felt slow and Fedora had a warning that something didn't load correctly.

I powered down the system and then turned in back on (the usual if the hardware isn't working first give it a "kick") and everything seemed to be working normally.  It might be because my mouse is connected to the desktop through the monitor's USB input?

Once I was back on, I did a 

sudo dnf update

to see if I was current and it gave the following error

Problem 1: cannot install the best update candidate for package libheif-freeworld-1.15.1-4.fc38.x86_64
  - nothing provides libheif(x86-64) = 1.17.5 needed by libheif-freeworld-1.17.5-1.fc38.x86_64 from rpmfusion-free-updates
 Problem 2: problem with installed package libheif-freeworld-1.15.1-4.fc38.x86_64
  - package libheif-freeworld-1.15.1-4.fc38.x86_64 from @System requires libheif(x86-64) = 1.15.1, but none of the providers can be installed
  - package libheif-freeworld-1.15.1-4.fc38.x86_64 from rpmfusion-free requires libheif(x86-64) = 1.15.1, but none of the providers can be installed
  - cannot install both libheif-1.16.2-2.fc38.x86_64 from updates and libheif-1.15.1-2.fc38.x86_64 from @System
  - cannot install both libheif-1.16.2-2.fc38.x86_64 from updates and libheif-1.15.1-2.fc38.x86_64 from fedora
  - cannot install the best update candidate for package libheif-1.15.1-2.fc38.x86_64
  - nothing provides libheif(x86-64) = 1.17.5 needed by libheif-freeworld-1.17.5-1.fc38.x86_64 from rpmfusion-free-updates
================================================================================
 Package             Arch     Version            Repository                Size
================================================================================
Skipping packages with conflicts:
(add '--best --allowerasing' to command line to force their upgrade):
 libheif             x86_64   1.16.2-2.fc38      updates                  298 k
Skipping packages with broken dependencies:
 libheif-freeworld   x86_64   1.17.5-1.fc38      rpmfusion-free-updates    59 k

Transaction Summary
================================================================================
Skip  2 Packages

Nothing to do.
Complete!

The output's suggestion of using --best and --allowerasing didn't work so search yielded two threads about this issue from months ago:

• https://discussion.fedoraproject.org/t/unknown-update-error-with-libheif/81302
• https://discussion.fedoraproject.org/t/rpmfusion-free-updates-libheif-freeworld-and-libheif-version-conflict/82240/7

Although the threads implied that it's been resolved and people had proposed different workarounds the simplest solution for me was simply to remove libheif-freeworld package:

sudo dnf remove libheif-freeworld

This seemed to resolve the issue.

The above threads indicated that a fix was submitted but it might now be broken again since when I searched for the various package versions on Fedora and rpmfusion, the working versions of the packages weren't there:

sudo dnf search --showduplicates libheif

Maybe it's the timing of my upgrade that ran into this problem.  Fortunately, it was a quick and easy fix but sadly I can't say that this was a completely seamless upgrade.