CANNOT receive iCloud calendar on Evolution

I was trying to set up iCloud Calendar on Evolution (3.28.5-0ubuntu0.18.04.1).

After everything settled, I found that I could not RECEIVE the calendar online, which says:

The calendar backend servicing “Personal” encountered an error.
The reported error was “Failed to read resource: HTTP error code 404 (Not Found)”.

Error Report Image

However, when I add a new appointment in the Evolution, the appointment will also appeared on iCloud Calendar or masOS Calendar.

Therefore, I suppose my settings are correct because the pushing service works pretty well.

Is there anyone encountered this problem before? I am a newbie in Ubuntu, the Calendar function works perfect on Evolution in Manjaro, and the settings are all the same.

I have already read the posts on Ask Ubuntu, but no one has post questions like this.

The settings are as followings:
Find Calendars Shows Calendar List
Choose Calendar from Find Calendars and get URL

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SAMSUNG SMART SWITCH IS THE APPLICABLE WITH ICLOUD

Does iOS 9.3.5 prohibit iBooks syncing via iCloud?

Is there anything that would prevent me from syncing iBooks with iCloud in iOS 9.3.5 on an iPad 2?

I have a working iCloud account in good standing, with three devices connected: an iPhone SE (MP832B/A running iOS 12.3.1), a MacBook Pro (17″ Mid-2010 running 10.13.6, build 17G7024) and an iPad 2 3rd generation (MC705B/A running iOS 9.3.5 build 13G36). I have 5GB of storage on the iCloud account, about 2.3GB of which is iBooks in EPUB and PDF formats. The account is at less than 50% of used capacity overall.

My MacBook Pro and iPhone SE both sync iBooks without issue, new arrivals and removals typically take place within the iBooks application on macOS 10.13.6. Any changes are reflected on the other device within a short time, and work as expected.

My iPad does not make any attempt to download iBooks stored in my iCloud account. I am signed into iCloud, I have enabled iBooks in the iCloud Drive settings, and when I open iBooks on my iPad I am asked to sign in…which I do, with the same account as my iCloud account (i.e. there is no disparity between the account used in iCloud and iBooks specifically.

I have reset the iPad numerous times, no change. I have logged in and out of iCloud repeatedly to trigger a download, no change. What else would be worth trying?

The download folder is empty when the icloud is showing ‘initializing…’ on Windows

I am trying to download a copy of my icloud pictures to a Windows PC.

Prior to this I have set the ‘Download’ folder to a different location (on a D: drive which has more space)

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But so far the folder is empty

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How long does it take for the photo to start to appear?

I am hesitate to try ‘Download photos’ button because last time I tried, it created a bunch of <Folder name> (2) folders (duplicate folders) and put a lot of photo in them. I can only stop it after signing out.

Keep iCloud Drive directory for “offline” use on iPad?

I have a directory under the Documents folder (let’s call it My Vacation), and iCloud Drive is enabled.

I’m regularly adding files to this directory on my Mac. (PDFs, tickets, etc.)

How can I mark this directory as “available offline” on my iPad, so that I don’t have to tap every single file before I leave to make sure they’ve all been downloaded to the iPad? (I will be without internet nearly all the trip.)

I’d be equally happy keeping all my iCloud Drive contents on my iPad, but there doesn’t seem to be a “Keep All Files” vs. “Optimize Storage” option on iOS.

Programmatically removing photos from icloud

Recently I centralised all my photos from various sources to use iCloud so I can access them on my iPhone, mac and have them saved/full control. However in the process I inadvertently created a lot of duplicates. I made some python scripts to analyse and tag the duplicates, so that now I have a list of file paths to images on my mac. For example, one such file path looks like this:

Example 1 /Users/nicholasjenkins/Pictures/Photos Library.photoslibrary/Masters/2019/03/12/20190312-210251/11923478-a5bb-4727-a65e-079c1b774f82.jpg

Example 2 /Users/nicholasjenkins/Pictures/Photos Library.photoslibrary/Masters/2019/04/18/20190418-081743/IMG_4223.JPG

The problem now is if I try to delete these directly, icloud will eventually download them back.

Is there some way I can programmatically delete these images, or put them into an album (for easy deleting in the Photos app)?