My friend you are LUCKY to not have had a spill, given he state of your tank.
I have also had bad experiences with Black which I mostly linked to the fact that it is hard to keep it homogeneous.
If you also have had issues with Tough though, which is quite a tolerant resin, you might wanna contact support. Maybe you got a spec of dust somewhere on the path of the laser.
Printing this will probably help you put down a first diagnosis.