That is a bug we introduced almost a year ago, so it was about time someone reported it 
Fortunately this bug did not affect the exported font, just the behaviour within the OpenType Designer. Anyway here is an update that should solve the problem.
FontCreator 14.0.0.2850 (64-bit)
Do let us know if it works.
Also important for you, this new release comes with a new Export option which is ON by default:
Since you regularly reported issues with fonts that were exported with optimized OpenType layout features, due to bugs in Adobe and Canva software, you might want to disable it.
We have reported this issue to Adobe and since then it seemed they have improved their software, as recent updates of InDesign and Illustrator seem to work fine. However they recently acknowledged Photoshop still fails with specific complex fonts exported with this option enabled.