https://bugzilla.redhat.com/show_bug.cgi?id=2290842
--- Comment #4 from fujiwara tfujiwar@redhat.com --- Thank you for the report. I could reproduce your issue and hope the update resolve the issue.
(In reply to Rajeesh from comment #2)
Confirmed that 1.5.30-5 fixes input method switching using Super+Space in Though, I notice that there was a regression with 1.5.30-2 that ignores the Compose key. I have set Right-Ctrl as compose key and it was working fine with 1.5.30-1. It is not working now (from 1.5.30-2 till 1.5.30-5).
I don't think The Right-Ctrl worked in ibus 1.5.30-1 but I guess you disabled ibus instead.
Currently IBus does not support compose keys in Plasma Wayland and it's a known issue: https://github.com/ibus/ibus/issues/2579 You saved the compose key in the desktop setting and IBus needs to read the configuration in Wayland. IBus can run `setxkbmap -query` for Xorg compose keys but that way does not work in Wayland.