Thanks for the link, Joe. Might be a useful thing to have in a production environment ....
HE ... when you said 'electronic trip' and "Square D" together, I had this 'deja vu' feeling ... but, in my instance, it turned out to be a PoCo issue that was causing problems. Since you've been monitoring things, I'm sure that cause has been ruled out.
Given the history .... well, looks like the Sq D units have a definite lifespan. Again, considering the costs of the equipment ... I might start looking into another make of gear - while, at the same time, expressing your displeasure, with documentation, to Sq D. Amazing things just might happen ....
