iv got the patreon 032
Tank is in Scar's hideout in the fishing village, he shouldn't be hard to find.
As for the next step in the dialog, have you found the body of the thief in the caves west of Northcrest? You need to find the object he stole, you'll be able to talk to Scar about it. Not sure if that's a definite requirement, but I know it's relevant in the next thing Scar sends you to do.
Just to be clear, I am guessing you don't see this when you click Visit Scar's hideout in the Fishing Village. Do you remember when you battled Tank in the Bandit's Camp if you had sex with him or just beat him up?
Since this is the only interaction after a one-time chance to Ask him about Scar, maybe beating him up keeps you from seeing him. Otherwise I am out of ideas. Oh, unless "Mocking him" at the start of the Bandit's Camp battle also keeps him hiding from you. Those are the only two variables in the Bandit's Camp sequence I can recall that could interfere.