Add existing backup not showing up
Recently acquired a Lenovo ThinkPad T480. I detached the original NVMe SSD and slotted into my desktop motherboard to perform a complete disk backup, for restoration to a bigger SSD. (The restored SSD failed to boot in the ThinkPad but that is a different story for another day)
After the restoration, I removed that backup (i.e. ThinkPad T480_original_Intel_SSD.tib) from the UI's backup list, since it's a one-off.
Today I wanted to re-evaluate the backup, and tried to add it back, but no matter how many times I performed it, the backup simply won't show up in the list.
No error messages of any sort. What am I missing?