If the repricer sees your own offer as competition, chances are you haven't entered your seller number correctly in your channel settings.
Only when your seller number is entered correctly (without unnecessary spaces and punctuation), the repricer will recognize your own offer and exclude it from the calculations.
Check your seller number and see if this solves the problem. Note: give the repricer a moment to recalculate.
If this does not solve the problem, please contact us. We will be happy to look with you.