We really can't track down an electrical issue without being there.....and so little information.

Does anything change with the ignition switch on/off?  (The left electrical control where the switch is located shouldn't be getting power if the ignition switch is turned off).

If the issue is occurring with the ignition switch off.....you likely have some bare/pinched/shorted wires somewhere.  Have you removed and reinstalled the fuel tank/seat or something where you might have pinched wires?

 I'd be checking your wiring at the turn signal again. be sure you hooked the turn signal to the power coming from the flasher unit(light-green?) and not the (gray?) running light wire that would send constant power to it.

check the wires running to the headlight.
the hole in the shell  is small and there's some flexing there.
I'd replace the flasher with an electronic one and ditch the resisters.

I'd like to ditch the resistors

I guess my question would be what did you do with the wires and connectors that use to power the front running lights? If you just left them inside the headlight they may have shifted over time and contacted the pos. wire going to the turn signal . LED's are polarity sensitive , ( if hook up backward they wont light) there fore you must have a  the ground and pos. hooked up correctly , but for the pos . you have a steady feed and I can only think of two sources ,one of the running light wires or the headlight wire itself, and be cross connecting the feed to your turn signal.

In the meantime,... three lefts equal a right...

I've never mentioned this before but along time back I removed all the wiring from my headlight housing ,preferring to wire the turn signals directly . thus running only the three wires needed for the headlight in the housing . To think that the wires inside where protected from weather is wrong ,rain will find it way past the  headlight and not drain well with all the wires plugging the opening entrance .The electric system is the weakest link of a motorcycle, and the weakest part of the system is the connectors,  the front turn signals have 6 single connectors ,that's 12 wire ends all jammed into the back of the housing, that can loosen or corrode, If I Have a problem I can be sure it's a bad bulb (filament ) rather than a wiring problem .All lighting on my bike is wired in this manner . Major components are still using stock connectors due to the need for testing , but lights are seldom removed ,and could be  tested at the bulb socket. Much like switching to a Raptor petcock ,it's better to deal with a problem before it happens ,than as it happens.