The Clarets broke the deadlock late on through Josh Brownhill following this tight and edgy encounter at Turf Moor.
But, for the second week running, Muric cost his side with a real horror moment, allowing Sander Berge’s back pass to go under his boot and into the back of the net.
In being held to a 1-1 draw, Burnley remain six points adrift of safety with only five games remaining.
Here’s how Burnley’s players rated:
5. Vitinho - 6/10
Didn’t appear to do too much wrong during the first 45 minutes but was brought off at half-time to be replaced by Charlie Taylor. Photo: Lewis Storey
6. Josh Cullen - 6/10
Pretty quiet. Didn’t do too much wrong, but equally wasn’t involved a great deal either after his early yellow card. Photo: Lewis Storey
7. Sander Berge - 6/10
It was his back pass that led to the Brighton goal but no blame can be put on his shoulders. Ended the game at centre-back for the second week running. Photo: Jan Kruger
8. Jacob Bruun Larsen - 6/10
Did okay. Squandered one chance to give Burnley the lead when he headed back into the six-yard box rather than at goal. Photo: Jan Kruger