Cannot add photo into save folders as not all of the folders appear on the saved list, as the list is limited to less than 100 folders.
Same problem here.
When trying to add a photo to an album, the "Add To Photo Album" window pops up to offer to "Add To New Photo Album" or "Add To Existing Photo Album", but the presented list of Existing Albums is limited to showing the first 100 Album names. So if you've sensibly started your Album Names with the year (YYYY) then the album your most likely to want to add to (the most recent) is lost off the bottom of the list rendering the move impossible.
Should be a simple fix, but if there's only us 2 who care enough to register the issue then I don't suppose it'll get any traction.
A workaround is to go to Manage Albums and rename the album dropped from the list to a name that puts it to the top of the list (eg prefix the name with a zero), add photos as originally intended and then rename it back!