Glacier Files didn't sync when moving to new computer

I had been using the free version of MSP360/Cloudberry to back up to the old Amazon Glacier. Recently I started using it to backup to the somewhat newer S3 Glacier Deep Archive, with the intention of re-doing my backup scheme.

The other thing I wanted to do is to switch from using the program on a Windows desktop to doing it on a Linux virtual machine on a headless Proxmox server (with a desktop environment accessed by RDP).

I followed the directions here: https://www.msp360.com/resources/blog/how-to-continue-backup-on-another-computer/ and it looked like it was syncing. But when I came back after it was done, I couldn’t see any of the files, just a series of nested folders like I uploaded.

Did I do something wrong? Or is it not possible to sync from a Windows to Linux install? Thanks