I’m missing out on promotion because I was too honest. What should I do?

[Monirul Islam]

Have you got a work-related problem? In this series we invite you to send in a short description of your predicament – so that other readers can offer solutions

For several months I have been working for a new boss who has nothing but good things to say about my achievements and who promised to put me forward for a promotion, but now states my relationship with a colleague will prevent this going ahead. The relationship problem seems to stem from my honest and professional feedback that the boss had requested about said colleague. I feel I am being held back for being honest. My colleague had on several occasions claimed the credit for ideas I had passed them and I had called them out on this, with email proof. What can I do to solve this issue? I feel I am being held back due to the unprofessional actions of this colleague.

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Source: https://www.theguardian.com/lifeandstyle/2018/apr/17/held-back-from-promotion-too-honest