1. The live broadcast platform does not turn on the play function or restrict the play permission: some live broadcast platforms may not turn on the play function or only open the play permission to some accounts, which will lead to the live broadcast not being played.

2. The live broadcast content involves copyright and other factors, so it cannot be played: some live broadcast content may be restricted by copyright and other factors, so it cannot be played or can only be played within a specific time period.