Issue with calendar permissions when using multiple calendars under a single CalDAV account

I am currently using the OneCalendar app and have encountered an issue regarding calendar permissions when using multiple calendars under a single CalDAV account.

In my setup, I have one CalDAV account with two calendars. One calendar has "modify" permission, while the other has "none" permission(read only). However, I have noticed that when these two calendars are present under the same account, both calendars become unable to be modified, despite one of them having the "modify" permission.

It appears that the presence of a calendar with "none" permission is overriding the "modify" permission of the other calendar, causing both to be uneditable. This behavior is causing inconvenience and limiting the usability of the app for my needs.

I kindly request that you look into this issue and provide a solution that allows calendars with different permission levels to function independently within the same CalDAV account. Ideally, the calendar with "modify" permission should remain editable, while the calendar with "none" permission should remain read-only.

Please let me know if you require any additional information.
Thank you for your support and for the continued development of the OneCalendar app.