soloban

Thank you for your advice.
however, I’d already ask them. Then I asked this community.

I also found I can see Categories and Featured Image if 5.8.4 is installed ,even it is the same cloud hosting service.

If 5.9.3 and 6.0.1 are installed , No Categories and Featured Image can set.

My cloud hosting server(https://www.infinityfree.net/) is free and I’m not sure that resources are exactly allocated for my machine.

Poor power of CPU is just my impletion
I haven’t payed for it and I can’t complain about how it is slow.

I have tow reports , instead installing locally.

First one is that my cloud hosting server provides free WordPress installer via cpanel

After I re-installed WordPress via this cpanel,I recognize that Categories and Featured Image are appeared in high probability as I post from Chrome @ Android.

However, It’s still No Categories and Featured Image can set from Chrome @ Windows PC.

Second one is that Categories and Featured Image can set if the WordPress is working on another cloud hosting server.

• This reply was modified 3 years, 8 months ago by soloban.
• This reply was modified 3 years, 8 months ago by soloban.

And randomly, Featured Image also is appeared.

https://snipboard.io/XIze6k.jpg

Thanks, I did.

Example1 Categories and Featured Image
https://snipboard.io/ZJs97N.jpg
https://snipboard.io/Ijtf7n.jpg

Today, Categories was appeared once like bellow.

Example2 only Categories is appeared
https://snipboard.io/nmMvig.jpg
https://snipboard.io/uHUsA1.jpg

It happens both Post and Page.

The site infromation I’ve watched is

https://wordpress.org/support/topic/missing-the-upload-featured-image-option-after-update-the-wp-5-9/#post-15303179

Mine is default theme Twenty Twenty-Two and No Plugin.
I installed it plainly.