Since the update to Helix Ultimate 2.x, articles that have intro images no longer allow text from the article to the right of the image - instead, all article text is forced to appear starting under the image. Changing the "Image Float" option from the Images and Links tab has no affect.
In pre 2.x versions of HU, the article text starts immediately to the right of the image if "float left" is selected (this is the way we want it to behave).
See example of how it works on HU 1.x here: https://acmeware.com/events
See example of how it looks on HU 2.0.4 here: https://staging.acmeware.com/events