It happens when there is an album whose text has more lines than the other albums in the same row.
In the following case there is an album with 3 lines of text followed by two albums with just 2 lines of text.
What happens is that in the albumlist the album below the 3-line-entry is shifted to the right, resulting in a gap in the albumlist:

I thought about writing a template using tables instead of s but I don't think that will work.
Any ideas for workarounds to this problem?