Iphone Xs - current version and up to date
macbook air on 10.15.7 (up to date without jumping yet to Big Sur).
I'm having the same same issue reported here: https://support.apple.com/guide/image-capture/transfer-images-imgcp1003/mac
I could not reply to add to comments but I have tried very suggestion brought up. I'm left with a wonky work-around when I really need a real FIX. Apple....this is ridiculous, fix the import!
That link is to the import instructions using the image capture app. What issue are you having?
Someone posted this solution to a similar problem recently
Image capture app errors out - saying my iPhone is busy. It works for a bit and out of 6,000 pictures I’ve got approximately half transferred because each time I get some to transfer before I get that error. This has happened 10 times. I’m so frustrated I’ve decided to update to BigSur in hopes the Photos app would take photos from my iPhone and transfer to my library as it should. Why is this simple task so troublesome?
Have you tried a different USB port, and different cable?
Have you tried the suggestion in the link I sent?
The link sent by Tony (https://discussions.apple.com/thread/252391816) is pointing to a user on a M1 Macbook with Big Sur and iPhone with iOS 14. This is indicating, that it would not help to upgrade to Big Sur just to solve this problem, because it seems to persist on macOS 11.1.
But you might try the recommended fix on the iPhone: Return iPhone settings to their defaults - Apple Support
Be sure to use only " Settings > General > Reset > Reset All Settings:" and do not accidentally use "Erase All Content and Settings".
Make a current backup, before you try this.
Upgraded to Big Sur fixed for me. Thanks for help though