Jetpack Sharing messed up bloginfo() array and others

Hi,

I’m building a website and laying the last hand on it before going live. I just set to show some social media sharing buttons and checked all “Show buttons on” options.
Refreshing the site gave me somewhat of a surprise; Now instead of my site-title I see the “Sharing label” I set on the sharing options page, and instead of the site description I get the site title.. Changing the “sharing label” again has no affect anymore, the (new) “site-title” keeps showing me the first “sharing label”-value I gave it… I call the site-title and description by bloginfo(‘name’) and bloginfo(‘description’). Another nice thing I noticed changed is the dateformating, it has gone entirely berserk: instead of giving me “13 juni 2015” like before, it gives me now “853E VUTC7pm6 2917 13UTC 853UTCzaterdag729172015-06-13T19:29:17+00:0007UTC vUTCSat, 13 Jun 2015 19:29:17 +0000UTC62972967 v20152015Sat, 13 Jun 2015 19:29:17 +0000 vUTC7pm6291706UTC.”

I tried to undo these changes but as it turns out they seem impossible to undo, deactivate sharing nor deactivating jetpack. (I did not go as far as removing jetpack as I still depend on other jetpack functionalities). I also looked at settings and even in the database but everything seems ok at first glance.

How can I solve this hiccup??

Hope to hear something soon…

EDIT:
I run wp 4.2.2 and jetpack 3.5.3 and there are no updates available. Did not disable any other plugins as everything was working perfectly before setting some social media buttons…