Strange characters appear in Wappler include file not in browser

I am getting some strange characters showing in the Design mode of Wappler…

Here is the same part as seen in Code view (looks OK)…

ScreenCapture 8 2019-01-03.png1013×79 7.63 KB

As seen in Chrome (also looks OK)…

I am not overly concerned because the code is correct and shows correctly in the browser. Has anyone else seen this issue?

EDIT: This seems to only show in a php include file but shows OK if pasted into the main file.