Sort of. When I installed all of the LEDs, I thought to myself.. "Once I get the resistors installed, it'll fix everything." so I threw the bulbs out because I'm an idiot, apparently. :/
With the resistors in, the hyperflash is gone so I am under the impression that the turn signal LEDs aren't the issue. Only other thought is that the marker lights being LEDs as well is throwing something off. I did replace the rear marker lights with bulbs and that didn't fix the issue. Tomorrow (assuming the weather is OK) I may get bulbs for the front markers to see if that makes a difference. If not, my only thought is that maybe a ground somewhere is awry or there's something screwy going on in the BCM.. either way, not a fun though trying to troubleshoot that.
I just purchased the car about 2 months ago so, honestly, I am not even positive if they ever worked properly. That's one of the few things that I /didn't/ check before purchasing the car because who would have possibly imagined that the turn signals would have issues. :/