Since returning from mat leave I have been struggling with a new boss. He doesn't understand what I do and therefore does not understand its' complexity. (I am trying to do something no other big companies in our sector can do and he often expects the impossible from me.) he will not believe me about things but then will be fine if someone else then backs me up or makes a suggestion I have previously made and been cut down for.
Now I have made a mistake in the numbers I produce and this logic goes back 6 months or so. It was something an employee of mine did and ran through with me (and I explained to my boss) but he made a mistake which messed up the numbers but was difficult to spot. The employee was a contractor and I terminated his contract a few months back because of poor performance.
Back at work on Wednesday and now I am bricking it. Can this count as gross misconduct? I did notify my boss as soon as I found the mistake (when I could have easily hidden it.)
I have also always been a high performing employee and I am still perceived in the company to be one (by everyone but my boss).