I believe this is a known bug. I can confirm that I was able to witness my skill raised to 49. I never noticed a message for 50.
I believe it will go higher with Velious; this is what I heard, I don't know for sure.
BTW - protip: If you use the titanium client, change the background tint to black, it will help read the dark blue con print. Also you can stretch the window up and down which allows you to usually see most of what would be in range. I put mine top to bottom on the right side of my screen.
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Grelwin, Grelroc, Grelfu, Greltwin
60 Halfling Druid
57 Iksar Shadowknight
60 Iksar Monk
20 Halfling Druid
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