I have seen some reports like this:

I had a debug session with someone and there were some interesting findings:

• It happened with monospace, Courier New, Consolas, Cascasia Code but not Arial (at least it wasn't obvious)
• Switching fontSize (forcing the char atlas to get refreshed) did not fix the issue
• Increasing the letter spacing mostly worked around the issue

Still not entirely sure why it's happening, but I believe handling this TODO will probably solve the issue and I can get it retested after we've done it: