If you pin the Mylio App Icon to the Window 10 Taskbar then when you click it, it opens Mylio but adds a second icon to the Taskbar. The standard W10 behaviour is for any additional icon from the same App to be stacked. Please could you fix this anomaly in a future update.
A solution was provided in following post.
Two ways to do “Pin to Taskbar” in Windows 10:
If you right-click the running Mylio app and choose “Pin to Taskbar” it works properly as expected.
If you right-click on the Mylio item in the Start Menu and choose “Pin to Taskbar”, then it displays the behavior you’re seeing. As I mentioned in the previous post, it also becomes annoying because the taskbar icon becomes invalidated every time Mylio is updated, and must be re-created.
Quick answer: use method #1.
It’s apparently not unique to Mylio. I’ve also noticed at least one other app - Evernote - exhibits similar behavior. Possibly a side-effect of whatever libraries/installer code these apps are using.
That worked fine. Thank you!