Help! Lightroom Classic cannot import any video

I also have this problem.  I'm on Mac OS Mojave and Lightroom 8.3.  There is a bug using video files in Lightroom Classic. Just got off chat with agent and he said,

"Actually we have seen some issue with the videos with these version so we

suggest to use the previous version for 2015 but then again we have a

issue that lightroom 2015 will not work with mac 10.15 and we are still

working on the issue with the new version and for now what I will

suggest you is to use 2015 and as we find a resolution we will get back

to you on the E-mail"

So his suggestion is that I use LR 2015 (which won't be compatible with the next version of Mac OS).  Very unhelpful.

Here is my copy of the chat:

Today  1:27 PM Adobe Customer Care Assistant Hi. I’m the Adobe Customer Care Assistant. Tell me what you need help with. I'll do my best to understand and find the right person to assist you. (Type “agent” to be transferred by a person instead.) Videos won't import or play in lightroom classic Adobe Customer Care Assistant Ok. I want to make sure I understand clearly. Which category below best describes your issue? Troubleshoot a product issue Adobe Customer Care Assistant Great. Connecting you to an agent who can help. Connecting you with a specialist as soon as possible. You are now connected to Koushtav, who is reviewing your account. If you need to share sensitive information, such as credit card number, please wait for your agent to give you steps to share it securely. Koushtav Hello, I'll be happy to assist you and Videos won't import or play in lightroom classic and may I know the version of Lightroom classic you are using? 8.3.1 Koushtav Thank you and may I know the error message when you try to import videos? something about dynamic link server Koushtav Okay I understand and may I know the operating system you are using? an unknown error has occurred while reading the video file. Connecting to dynamic link server failed (1) I'm on mac os 10.14.5 Koushtav Thank you for the information. Is it OK if I access your computer remotely to assist you with your issue? If yes, please close your personal files and folders. Let me know when you're ready to start the remote session. ok. I'm ready. Koushtav Please click on the link and start the session:  https://screen.share.adobe.com/?ak=1ba93cfe38f096c3700c2ff0298d7568 Thank you and let me fix it. Now please try to import video and check I get the same error Koushtav May I know the location of videos are you importing them from external drive or internal drive? They are on the internal drive in a folder on the desktop Koushtav Try with some other video files and let me see if we get same error or not. Okay so same error I am creating a new catalog and I will check in that catalog. Please try to import here and check Please try to import here and check I lost the remote session and please now try to import and check is that working or not. I still get the same error message Koushtav Okay please open the Adobe creative cloud and please install the lightroom version 2015 and then check is the videos importing there or not I'm confused. I already have the latest version of Lightroom Classic installed. Are you asking me to uninstall and reinstall it? Koushtav No just install the previous version of lightroom and we will check in that videos are importing in that or not. I successfully imported a video in lightroom version 2015 Koushtav Okay so it is working with that version but the latest version is not supporting so this is not working, let me know have you added any third part presets, brushes or plug in to latest version of the lightroom? I have the nik collection of plugins. Koushtav Okay I understand, please back it up and we need to uninstall and re-install and check if that works or not. I've backed it up. So, I should uninstall and reinstall lightroom classic? Koushtav Yes Is that working now? I'm still installing Lightroom classic I still can't import videos. I get the same error message Koushtav Okay I understand so need to use the 2015 for videos as there is a compatibility issue So, you're telling me that lightroom classic doesn't support videos? And I have to use a previous version? Koushtav Yes actually new version is having issue and you can also try with 8.2 and check Is this something that will be fixed? Lightroom 2015 won't work on the next version of Mac OS. Koushtav Actually we have seen some issue with the videos with these version so we suggest to use the previous version for 2015 but then again we have a issue that lightroom 2015 will not work with mac 10.15 and we are still working on the issue with the new version and for now what I will suggest you is to use 2015 and as we find a resolution we will get back to you on the E-mail Is that it? Because this link https://helpx.adobe.com/lightroom-classic/kb/video-support-lightroom.html says that video is supported? Koushtav We know it is supported but with the 8.3.1 it is having issue so we are working with this issue and in your case also we will work and for now you can use the previous version of lightroom to import videos and as soon as we fix a fix for this issue we will E-mail you the same with the resolution. 2:50 PM Type your message here

I've been importing GoPro videos over last couple of weeks and then last week LR borked and refused to import files one day.
Did another import this week LR imported files fine into various date folders as I wanted. I renamed them as pairs with the associated .WAV files that LR always ignores using Bridge. Did a sync folder to get LR to update with new file names and now LR suddenly does not recognise them. Nor would it import some other older GoPro files I tried importing.

FAQ: How do I contact Adobe Support?

I got the same problem and tried everything on the forum. I also tried to refreshed my MacBook. I installed Lightroom from scratch with new user account. But no luck at all to fix this. I have hundreds of video pending to import. Pls help

and Firewall??? Adobe Dynamic Link troubleshooting - Blog - Digital Rebellion

Well, I probably misunderstand the error message, that server part makes me think Internet, makes me think Connectivity.

This link (at bottom)  is more involved than just Lightroom, talks of other Adobe products, but does talk about Dynamic Link.

One issue could be version of Adobe Creative Cloud

Fixing Dynamic Link - YouTube

warning, very long video, did not go thru whole thing.

By the way, can you now purge the video cache? If not, you probably have an user account permission issue.

Also, not listed, connectivity issues

How to resolve connection errors with Adobe Creative Cloud and Creative Suite applications

And License issues, as well as connectivity

Troubleshoot licensing issues | CC 2019

I have the same problem. Tried all the so-called solutions I found in the forum, no effect. Latest version of Lightroom Classic on a Macbook Pro running 10.12.6.

I mean, WTF? This issue is by no means new, and it seems to affect many of us. Come one, Adobe, do something. You're charging us enough for your products.