PLZ fix Caustics Its a pain i the a..!!!

Everytime i want to use Caustics subdivisions its a matter of hours to get it work - and i never know why its suddenly work!

sry i am a little angry! After years now, i just want to remember you guys…
greetz Sanny81

Can you describe in a little more detail what is your particular workflow for caustics?

Best regards,
Vlado