GO7 Vert deflection failure

Riptor

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I have a GO7 been recapped, new regulator to fix a B+ problem. Its working but is flatlined. I pulled X401 & X402, tested good, replaced with new anyways. Still same problem and I found that the small ceramic FR401 is blowing open. Anything in particular that is known to cause this. Im coming up with nothing at the moment.
 
I got this going last night. Not sure what happened to the first FR401 I installed. After checking everything I could(400's), I said screw it and installed another FR401 and it worked great. Let it burn in for an hour and no issues. I guess it was a defective resistor because it was new. I replaced the original as I usually do because the legs were corroded.
Original problem with this monitor was a bad regulator and it was putting out 160v on the B+. Fixed that, recapped, new flyback and replaced FR401 and then had vertical collapse. X401 & X402 tested fine but I replaced anyways. Found open FR401, replaced and problem was fixed.
 
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