On my side, it doesn't show 2 black lines, also none of my previous users had the same issue. Probably try to update the plugin to version 1.3.2 and see how it goes.
For latter issue, can you send me a video via Discord?
Viewing post in [ANSWERED] Border around icon
Here's the video.. i show the events so you can see and then run the game, then delete one of the text in the one event so you can see that the icon dont show without me putting in a text comment. You can also see the weird box outline that shows on the icon for me too..