Inconsistent Print Speeds

I mentioned this in another post, but I think that it deserves its own. I am having issues with the objects not printing at the proper speeds. You can see this in the toolpath viewer. I was not sure if it was a visual bug, or if the prints were actually changing speeds. Apparently the speeds are changing, I just had a print fail because of this. Marked several spots in the image below where the speed is changing.

These marks line up perfectly with lines on the actual print that did not adhere properly or at all. I have attached two pictures below. The colored lines correspond perfectly to the lines in the toolpath viewer where the print speed is way too fast.

This print speed is way too fast for printing at .1 mm resolution, and the layers did not properly adhere. They easily pulled right apart and the top layer completely failed and the print did not continue.

Hey Keven, Thanks for this bug report.

Can you say please, what printer you used?

This was done on a Makerbot Replicator 2. I also get the same speed inconsistencies on our Makerbot 2X as well.

Thank you! I will analyze this.