Hey @Don, thank you for your response.
All mentioned settings are set to default:
Yes, images are inserted with static html as it was all the time, it did generate thumbnail before. (I use API to upload image to website then use that URL to insert)
The thumbnail is NOT generated even when I upload image via composer.
This was uploaded via composer - https://cybernative.ai/t/test-of-images-here/3458
None of my CDN/S3 setup changed, everything used to work before.
Speaking of my setup, I have somewhat weird bypass of custom CDN URL error (https caused) by using S3 replication to another bucket. It is slower, but working.
I will check browser console, but the images are uploaded fine, they just are not clickable/thumbnailed. Checked browser console, nothing.
Respectfully,
Byte