1- Drag and drop when arranging sides in the line up is VERY problematic, slides don't move and or not as expected.
2- Max number of sides that is counted is 9, IE a song with a lot of sides is only numbered up to 9.
Are you on Mac or Windows?
This should have always been the case as the number represents the default assigned hot key and it can only be a single character.
If this was user definable ( hot key assignments) it would remove the limitation of only having 9. But as you can probably tell I wasn't even utilizing the hot keys! :-)
You can create custom labels in square brackets. The first letter of the label is used. For example
[My Label]line 1line 2
'M' will be the hot key for this verse.
I had similar issues with #1 listed above, though I was using a Windows 7 Pro 64x edition. I was unable to re-sequence slides. After dragging and dropping, the slide may or may not "land" in the place I dropped it. Though I didn't have much time to experiment, it seemed to occur with some slides but not with others. This appeared to be an issue with slides carried over when I copied a previous order of worship, while new slides added to the OOS seemed unaffected.