Motor trouble while checking sequence

hello guys, so i just finished soldering my motor to my esc. the motor i used is T-Motor Anti Gravity 4006 - 380kv and my esc is T-Motor Velox 45A. after im done soldering i tested the motor sequence and when in process my last motor stutering then when i checked the motor there is like something watery and feels like a glue gun on the motor with some kind of whitening powder for laundry. do you guys have a clue of what happened???

soldering pics:

the one that has problem is motor D

Motor pics:


Looks like two of the motor wires are shorted, I’d say. Check for it with a multimeter.

You need a higher watt soldering iron. Those look bad. Tin the leads first before making the connection to the solder pad.