Sounds to me like cheapie bulbs that weren't made correctly. Kids knocking stuff out in Chinese sweat shops don't necessarily pay attention to clocking offset bayonet bases in the right position. Not at first, anyway. Then the whip gets cracked and maybe the next batch will be closer to functional...
I've bought from V-LEDS (long ago before their Triton product), SuperbrightLEDs, Autolumination/Superlumination, DDM Tuning, several of the cheapo junk from the auto parts store (typically Pilot brand), and even the first guy that made LED wedge base bulbs way back in the day and helped him come up with the CK style wiring so GMT400's wouldn't light them on fire - Hz Engineering. All in all I gotta say you can get lemons from anyone when dealing with automotive LEDs. Try buying from a reputable dealer so your chances are better for good product, and you have some means of exchange if they don't work. Getting them off Amazon, eBay, etc. is more of a crapshoot.
Richard