When I removed/remounted my blinkers I had a lot of trouble getting and keeping the front blinker "casing" grounded to the body. I know the ground wire is attached to the blinker case not the bulb socket. With the new paint the casing might not be grounded.
Check with ohm to make sure it is grounded and the striped wire is hot when blinker is on.
Check with ohm to make sure it is grounded and the striped wire is hot when blinker is on.