if you send your project file to me and capture the state of your addons folder then i can do one better – i can see what you’re seeing, but on my machine with a debugger enabled, which is what’s really necessary to understand problems like this. simply witnessing them is not usually sufficient to fix tough problems – development tools let run things in slow motion and peer inside the code while it’s working (or in this case, not working).
Here’s how to capture the state of your addons folder, which is necessary for me to get the full picture of what’s going on:
https://yourhead.zendesk.com/hc/en-us/articles/360033849994-Sharing-Your-Project-and-Add-ons
Isaiah