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I use chrome. I have no problems when I used Hive or Peakd as my front end. Now I cannot add two images side by side or align those images if I do.

We are investigating image upload issue, anything else you remember about this issue or any details, let us know.
As for aligning images... Did you try <div class="pull-left"></div><div class="pull-right"></div> ?

this is left aligned image
this is right aligned image