When trying to use dual display for mPOS, it lets you try and log in, but once the main screen pops up, it immediately shuts down. I attempted to used the Retail SDK to debug the issue and it seems like it gets to Pos.js line 25 where it says "this.destinationPagePath = Commerce.StringExtensions.EMPTY;" and throws an error.
Dual Display on legacy POS works just fine, this issue seems to only be with mPOS. Has anyone else been able to use dual display with no issues?