Need Help Troubleshooting Brake Troubles

I use one of these when bleeding the brakes. Best tool I ever bought except for my big mallet.....

Phoenix Systems 2104-B: V-5 DIY Reverse Brake & Clutch Bleeder | JEGS

Bled a lot of systems with this. Just leave the system dry, hook it all up, and it pushes fluid from the calipers and drums back to the master cylinder. No need to to bench bleed anything because it goes the opposite direction. Never had any issues with this thing and changed several MC alone, entire brake systems. Just pop the top off the MC and it does all the work. Never any air if done correctly.