Album migration from LR

Hello, I am trying On1 as a possible replacement for LR and have just migrated my files across as per the tutorial. However, not all my LR Collections have moved across. Also, I noticed that in some Collections that di migrate to On1 Albums are missing some editing details. For example, I have a LR Collection called 3:1, which contains a collection of 3:1 ratio images. Some of these have migrated as 3:1 images but many have reverted back to the origonal 4:3 ratio.

Any suggestions or ideas? I have tried deleting the first migration and re doing the whole process. Same result. Non of the LR collections are smart collections.

Cheers

Matt