Hmmmm, less likely the issue
HOWEVER
Th P0 is not an ideal location for a Flex Implant, ironically due to all the Flexing that position does.
You have a couple of options available to you; if it was mine, I would be:
removing it
inspecting it,
testing it,
resterlizing it (in some form or another.)
And reinstalling it in another location somewhere between P1 and P4.