Is the trigger guard tang actually out of its inletting??? Hard to understand what exactly your issue is. The tangs had to be a little bent depending on the buttstock cast. This is completely normal. If the tang has popped out of its inletting, then that’s another issue.

When gunsmiths bend stocks to fit a customer, the bending of the tangs can be also part of the job. Refitting/inletting of a tang could also be required depending on the severity of the bend.