Double characters on RHEL8 default GNOME

Question

ALL,

We have a software that was (and is) running perfectly on RHEL7 default GNOME and MATE.

Now we switched to RHEL8 and what we see is that when theuser types a character that character is displayed twice, i.e. user presses "1", but on display it shows "11".

I was told that in order to fix it I need to install im-chooser and then switch to X11/GNOME Classic.

While it did fix it, I'm wondering if there might be a more permanent fix for that?

Or maybe someone already had that issue and knows how to do it permanently with Wayland and GNOME.

Our software uses Qt4 for GUI (still), but there is a plan to switch to Web interface (soon).

TIA!!