Mobs are not spawning bruh

[PainthepatrickYT]

i need help i placed blaze spawners 19 of them and they are not spawning im close to it too i have lights but its glow block or something please help someone on server has glow stones close to mob spawners but its still spawning

 

[RaibinKnight]

Don’t put glow stones and stay next to it and try too see if mobs spawned out of the area

 

[PainthepatrickYT]

Don’t put glow stones and stay next to it and try too see if mobs spawned out of the area

Ok they started spawning after i expended the place it was big but i made it bigger but thanks for the feedback