P: (Windows): Not synching with LR mobile IOS

Lightroom Classic 10.1.1 was released on Monday 01/11/21 and contains a fix for this issue. Please down the update as soon as it is available in your Creative Cloud App. Thank you for your patience. 

Similar problem here:

I created a new synched collection.

When I started synching, it first went ok, but then was stuck and not moving any further.

So I removed the collection again and started synching in small portions.

Now I can narrow it down a bit more, because some images are working fine and others wont.  Synching direction is classic to cloud (synching smart previews).

While images are stuck, the syncing activity in the settings does show nothing. Rebuilding sync data did not help either.

Going back to an old pre-V10-catalog is no option. 

What is the solution here? Synching was already not working well pre-V10, but now its almost unusable which is really bad, because synching my devices is one of the key features, that stands out for Lightroom compared to other alternatives.

@dave_almond Can you share with us what was wrong in the catalog which was blocking the sync? If possible, can you share the catalog which when you upgraded stopped the syncing? It will be helpful in debugging out the issue further. Thanks.

Hi, 
Can you please try out the solution that @dave_almond provided below?
Please let us know the updates.

Thanks for the update.  A catalog in a weird state sometimes happens.  Also a machine in a weird state during an update can do similarly. I am glad you are working again!

That tells us the problem lies locally with Classic.

1. Verify - don't assume' but verify that your Email Address you are using for Lightroom Classic/Creative Cloud app is the same email address you use when logging into the website.

2. Verify - that the syncing option is turned on and not in a paused state for Lightroom Classic (Cloud icon on the upper right). 

Hi Rikk,

I think I have got to the bottom of this issue and fixed it in my case.

I believe the problem was caused by the conversion of the catalogue to the new v10.0 format, whereby a benign issue with the old catalogue is exacerbated by the conversion routine to become something much more malign. I speak as a software engineer with over 30 years' experience. Converting legacy data to a new format is often risky and conversion routines, in my experience, are often poorly tested.

I noticed that each time I started LR Classic it always started in the same folder, which was the one I was working on prior to the upgrade and not the one I was last working on, which it normally does. This set alarm bells ringing with me which suggested a possible corruption.

So I went back to a backup copy of the catalogue which is a couple of days older than the original and converted that one to v10.0 format.

This catalogue is now syncing fine with the cloud in both directions. It did take quite a few hours of syncing to become stable but it now seems to be working as I would expect.

I hope this is of help to anybody else who is having similar problems.

Cheers,

Dave

Hi Rikk,

No, newly created sync attempts do not make it to the cloud.

I have the same issue here! Syncing 11.368 photos it says but nothing is happening for the last FOUR hours!! Frustrating since I want my client to be able to see and choose his photos. In "Preferences" > "Sync Activity" it says (0 uploading, 0 Downloading, 0 Pending)

"For example, if I create a sync collection in LR Classic the collection does not appear on my iPad."

Again - from my previous post: does your Lightroom Classic Synced Collection show up in the Cloud?  Regardless of what you did before the update - the question needing answered is: do newly created sync attempts make it to the cloud?

We can troubleshoot no farther until you can give us the answer to that question.