Charm Loading Glitch

The following happens to me a lot… I load 500 Unicorns with the intent to play them out. 100 clicks later I begin my gaming session when very soon I am out of Unicorns as I have only succeeded in loading 4 sets of 5 each.

So I load them again…click, click. click, etc and the second time I always manage to load the intended large amount.

I can’t be the only one that experiences this, right?