Just had an issue today where my roll landed me on the special board in the black spirit adventure...and I was too close to mobs I was grinding.  I rolled again and was interrupted by mobs attacking me...which is set to close the extra UI elements and take me back to combat.  My roll still completed and I got the rewards, but apparently that took me completely out of the special board and back to the regular black spirit adventure board...despite that roll only taking me to the halfway point in the special board.  It even defaulted and gave me the end reward for completing the special board even though I had not completed that board.  I'm assuming that isn't the expected behavior...that getting interrupted by mobs auto completes a black spirit special board regardless of how far into that special board you are.