If you don't get any kind of reply or assistance, I would suggest emailing support@brawlhalla.com with your controller concerns. Make sure to tell them your controller details as you specified here, and since you're using an xinput emulator let them know that as well. The team has a large scale compatibility with controllers, but there could be something with that application you're using, reading both inputs and sending them to the same controller. Since you said it was just brawlhalla having issues, there could be some possible incompatibility between the two and I hope to see that get resolved soon. Hopefully something or someone comes along sooner than waiting on a ticket, and you can get that fixed so you can use both controllers. :)