Back Story:
I am a first year light enthusiast. I started using Xlights in January. And since then I have learned a lot more about using the set-up tab and other Xlights features. As well as new capability came to Xlights such as the ability to put groups into groups. As I felt like the original sequences and set-up was pretty messy, I decided to re-create my entire set-up using the groups into groups idea, then create new sequences and import my old sequences into the new cleaner, easier to manage versions.
Bug:
Step one went pretty smoothly, and I loved the result of the new cleaner looking set-up. I made a whole house group and then put all my other groups into it. So when I created a new sequence, it was much much easier to navigate. I then created a new sequence for Star Wars Funk, and then imported my old messy sequences into it. At first I loved it, as it was just much easier to manage. But then I noticed that some of the effects were not working. I did some troubleshooting and found that for some reason, there were effects that were imported with different properties, specifically what I noticed was under the layer blending tab the effects which were originally set to "Normal" had now been shifted to "Effect 2". And that is why they weren't showing up. It actually was an entire section of those effects that were given the incorrect Effec2 property on layer blending.
I will attach the before and after. The problem area of the sequence begins at 2:08.275 on the whole house group, Left Dormer Top Line, Right Dormer Top Line, and Roofline Top Line and continues through 2:37.200. All the effects on those models were incorrectly given the "Effect 2" property on layer blending. I looked at the check sequence log, there isn't any indication of a problem there.
I am using 2017.15 but this problem existed on at least 2017.14 as well. Probably earlier versions as well.
Edit: Upon going back and checking the older sequence, my initial observation seems to now be incorrect that the effects in question were set to "Normal" and are now set to "Effect 2" after importing. Upon checking again it seems as though they were always set to "Effect 2". So unless I did something while comparing the two sequences side by side that changed that result, I have no idea why the effects are not working upon importing to the new cleaner sequence file.