I do not see signs of capacitor goo corrosion in that area. The solder has not lost its shine nor turned black. There is the possibility that the recapping soldering could have caused a problem around C9 C10, or possibly underneath them. You can use an ohm meter to verify none of the traces from those feedthrus between C9 and UI12 connect to the terminals of C9 and C10, and that they continue along their individual ways under C9 C10 to where they go near UJ11.