task for 1st day of month not shown (sometimes) in list view mode

Steps to reproduce

today is 1 Feb 10:00

1. I had :
   TaskA for 01 Feb 00:00
   TaskB for 02 Feb 00:00
   TaskC for 03: Feb 00:00
2. AllTasks are visible in day/week/month views in Firefox on computer and android browser
3. Task A is not visible in Calendar's Task view in some cases ( theoretically because Feb 01 00:00 is already behind me)
   but in some cases after refreshes/ changing views/ apps and comming back to the listVIew the 1st Feb task suddenly appears in Task list.

See the same page on same data after refreshes

This happens probably only for task dated 1st day of month.

Expected behavior

Consistant display of task for Feb 01 between refreshes

Actual behaviour

Task dated for 1st Feb disappear and reappear in List view randomly

Calendar app version

4.6.1

CalDAV-clients used

No response

Browser

Firefox 122, Firefox mobile

Client operating system

OpenSuse linux, Windows 10

Server operating system

Ubuntu nextcloud snap

Web server

Apache

Database engine version

MySQL

PHP engine version

None

Nextcloud version

No response

Updated from an older installed version or fresh install

None

List of activated apps

No response

Nextcloud configuration

No response

Web server error log

No response

Log file

No response

Browser log

No response

Additional info

No response

Start by reproducing the issue in Calendar's Task view using tasks dated on the first day of a month, then compare refreshes and view changes in Firefox and Firefox mobile. Trace the list-view date filtering and rendering behavior; done means the February 1 task appears consistently between refreshes and remains consistent across the reported calendar views.