Faulty hotspot positions

Hello,

I am having an issue with some hotspots re-positioning when I publish.  I position the hotspots correctly in Captivate, but when I publish they move quite a distance downwards.

The issue seems to be limited to hotspots 4 through 6 on any slide and occurs on both previewed and published files.

Two screenshots are attached.  The first shows the positioning of a hotspot (furthest right) in Captivate.  The second shows the final position when published (still furthest right, but much lower down the image).   Interestingly, the text box for the wrongly positioned hotspot still opens in the location it should have.

Any advice or help would be greatly appreciated.

Thank you.

Graham