Visual char mode (v) is not highlighting characters being selected. It is working but I have to manually recognize the number of characters being selected in the line with l. Is there a fix for this bug?
Can you leave a bug report on the https://github.com/emacs-evil/evil/issues, preferably with repro steps from a minimal config?
Never seen this kind of issue before.
Did you recently upgrade packages?
Have you tried using a different theme SPC T s
If running Emacs in a terminal, try as a GUI app and see if the issue remains?