Question on Turn signals and fuses

So to keep this brief, I switched over to LED turn signals, and put resistors on each, using a thorough, clean solder installation with heat shrink, per the instructions.

Worked fine until recently... I now have hyper flashing blinker symbols on the dash, but NONE of the blinker bulbs light up at all, even with hazards engaged. I found the front driver's side resistor heat sink body had blackened some, so it must have got hot I am guessing, not sure why. I replaced it with a new one,... and the wiring, bulbs, and sockets etc all look to be in mint condition. Still same issue, and I wanted to check the fuses, but can't find anything in either fuse box labeled turn signal.

Any ideas or advice are super welcome! Really appreciate it!