alt Hacker NewsThis might not describe you, but I've met quite a few people who made similar claims. The problem usually wasn't that their counterparty didn't want to hear the truth. More commonly, the problem was that these persons assumed (and were convinced) that they knew the truth. Truth is rarely absolute and someone claiming to know it is a red flag in my book. Double so if multiple persons indicated their disagreement. Again, not knowing the exact question and answer it is impossible to say if you are an exception, but even if you are, you need to improve communication skills - what good is knowing "the truth" if others reject it?
That said, best of luck on the job hunt! Sometimes it just takes some time for the right opportunity to come along.
Truth is easy when the question is about your own involvement in something. You just don't lie and don't intentionally deceive. This isn't about technical arguments, or moral quandary, or ambiguous situations, it's about marketing yourself in a world where you are expected to lie about your accomplishments to look better. Citing metrics you know are not accurate, but make you look good. Overselling your own involvement in a project. Up-selling the impact of a project by not disclosing the parts you know would undermine your perceived competence.