Images not being downloaded from external url

Hi, I’m tryig toimport some blog posts with csv file.
Everything works fine except of images import.
Ihave a Content field in csv where allmy post content with images is held.
For example:
“some text… <img src=”https:// some url…”> some text <h2> Some title</h2>”
And fetured image sre at the separate filed
To upload images from third party server I use:
“Download images hosted elsewhere” option where I state my featured image first from separate filed
{imageassets[1]}

+ enable “Scan through post content and import images wrapped in <img> tags”.
Bt nothing happens – posts are being uploaded, but images here are not at the my WP website but link to previous resource. And even featured image is not being uploaded though I can see it at the test section.
What should I do and what should I check to make the image uploaded correcty?

Approximate image name length is like that – https://myserver.com/HCbva8Qfls3SaKvYbBqS5Nfub91OD9cfWcBr1a96hrMfubQJB-out-0.png
FYI – I cannot reduce image name – I have read in previous posts it could be a problem.
In log files there is empty strig concerning images upload [14:12:57]?IMAGES:

couls you please help in solving this issue?