frame and the dropdown arrow for participants visible although the section is hidden

[meretracz]

Hi

After updating from Moodle 4.4 to 4.5, the frame and the dropdown arrow for participants are visible despite the section is being hidden. The participant can't see the content and the title, they only see the frame and the dropdown.

We would be very happy, if this issue could be fixed soon.

In the meantime, we had tried this CSS in the raw SCSS Section with no changes:
hidden,
dimmed {
display: none !important;
visibility: hidden !important;
border: none !important;
box-shadow: none !important;
outline: none !important;
background: none !important
}

.course-section.hidden {
display: none !important;
and the rest too}

li.hidden {
display: none !important
}

li[aria-hidden="true"] {
display: none !important
and the rest too
}

li[aria-labelledby*="section-"] {
display: none !important;
}
with this code all list-Elements are away (including the visible ones)

li.card.section.main.collapsed[aria-hidden="true"]
li.card.section.main{aria-hidden="true"] {
display: none !important;
}

We also tried putting .role-student in front of the CSS but this didn't work either.

Thank you in advance for your response.

Kind regards
Meret