P: Ability to disable eject memory card after import

Ok, let's start back at the beginning.

Are you Mac or Windows? And which Lightroom version number are you using (under Help menu > System Info) as this thread is about the cloud-based version of Lightroom.

What kind of USB device are we talking about? Is it a powered USB2 external hard drive? Is it a portable USB3 external hard drive? Is it a USB stick? Is it a memory card in a card reader?

When you go to the Import dialog, what settings do you select?

We need to be much more specific as there aren't other reports of the same issue. 

When I import 1 or multiple photos from a USB device then Lightroom ejects the drive. Sometimes it glitches and is unable too and comes up with a message saying it could be not ejected, but 90% of the time it does eject.

USB external drives should not be ejected. Take us through what you do and what happens.

It ejects USB devices too not just SD cards. I use USB storage devices.

I'm not sure I follow your problem Georgie. Lightroom works just fine with the photos on external hard drives, this thread is about ejecting memory cards. Perhaps you'd like to explain your workflow so we can understand where it's going wrong?

I never save my photos onto my internal harddrive, I do all editing through external harddrives. I also edit photos one at a time because I do them all differently. It's infuriating to have to keep physically pulling and putting the usb back in just to save my work and then re-import. 

I'll offer my own workflow. I often have a mix of photos and video. I obviously do not want to import the video to Lightroom CC, so I import the photos first (usually the shorter import), then import the videos to my drive while I go do something else. I hate having to reinsert the card when the photos finish to switch to video. I 1000% can't set them to offload at the same time because when the photo import ends it terminates my video transfer. I don't care if it isn't the default, LET THE USER CHOOSE.

I'll offer my own workflow. I often have a mix of photos and video. I obviously do not want to import the video to Lightroom CC, so I import the photos first (usually the shorter import), then import the videos to my drive while I go do something else. I hate having to reinsert the card when the photos finish to switch to video. I 1000% can't set them to offload at the same time because when the photo import ends it terminates my video transfer. I don't care if it isn't the default, LET THE USER CHOOSE.

The user should be in control of when the SD is ejected. An auto-eject behaviour should be under control of a preference setting. The content of the SD may be relevant for use by other Apps e.g. video. Unfriendly and unexpected behaviour from LR to cause the user to re-insert the card if they want to do anything other than a single LR import.

I agree, this needs implemented again. I don't want to have to re-learn a new method in my workflow which works for me and have used in all previous lightrooms.