Pathauto alias produces inconsistent aliases I have a content type with its own Pathauto pattern studios/[node:title]. What could be the reason that the alias of the node entitled "Studio A" is studios/studio, whereas for "Studio B" (for the same language) - studios/studio-b. The latter being the desired shape of course.
I tried to resave the node, I tried to bulk delete aliases and re-generate them - all to no avail.
Check settings in  Administration » Configuration » Search and metadata » URL aliases there is a Strings to Remove like this:


  a, an, as, at, before, but, by, for, from, is, in, into, like, of,
  off, on, onto, per, since, than, the, this, that, to, up, via, with


thats why your A is removed i think.