Default KDE panel doesn't always unfold at boot

Hi all,
I um using Fedora Kinoite 40 with Plasma 6.0.5. Sometimes, not always, the panel is shown as a miniature of itself. All the buttons are there although invisible, when I click somewhere on the small panel a program opens. That all works, but I see no icons and I guess if I should see them they would be so small that I can’t figure out which one is which.
In the attachment I have a screenshot of when it happened:
on the left the small version of the panel, on the right screen the correct opened one. They are similar, exact copies of each other. It always happens on the external monitor, a Philips 27" screen connected through HDMI.

As said I use Fedora Kinoite 40, have an AMD Ryzen 7 6800H CPU with Radeon graphics, 16GB ram and an RTX 3060 Nvidia card using the 550.78 driver.
KDE Plasma version is 6.0.5, KDE Frameworks 6.3.0, Qt version 6.7.1, kernel 6.8.11 and I am using Wayland.

Does anybody experience the same issue and if so, did you find a solution for it? I know the panel unfold after some time, but it would be nice if this happens straight at boot.

Thanks.

Likely an NVIDIA issue

Removed amd, radeon

Looks like this should be reported upstream to KDE: https://bugs.kde.org/