It's really a balancing act. It's also surprisingly difficult as an eng-exec with a deep eng background to correct some things without accidentally undermining those around you. Happy to provide examples of this comment is too vague.
I find it extremely rare that a source of issue is the former and relatively common that I’ve been confusing or incomplete in my own guidance. If it’s in my head only, it doesn’t exist for my team and I need to fix the issue at the source (me) and, in so doing, that might change the engineering course and/or estimate.
(I have also accidentally undermined my team unrelated to the above; IMO, the best response there is to acknowledge it and try not to repeat it, because if you do, people in the company are prone to try to exploit that to drive outcomes that they think is best for the company. That’s fine, but it may undermine your ability to lead change in the company and cede it to others.)