lost my mind a little tonight, new downstairs neighbor moved in 5 weeks ago and is suddenly logging noise complaints on a dog who has lived in this unit for two years without a single issue and i need a gut check on whether this is even my problem to solve

this is mostly a vent but im also genuinely asking. our dog is Pepper, 4 year old shepherd mix, about 45lbs, and we have lived in this third floor unit for two years and three months. the entire time the unit below us was a guy named Marcus who worked nights and slept days, and we got along great. zero complaints in two years, he met Pepper twice in the hallway and gave her a piece of beef jerky once, perfect neighbor situation.

Marcus moved out at the start of may. new tenant moved in mid may, ive met her exactly once in the elevator and she was polite but cool. five weeks in we have now received THREE separate logged complaints through the building portal. one for "loud thumping during work hours", one for "barking during early morning hours", and the third one just said "ongoing dog noise issue, please address". the building manager called me yesterday to ask if we could "talk through a plan".

heres the thing that is making me genuinely lose it. Peppers daily routine has not changed in two years. she sleeps from about 10pm to 6am, my partner leaves for work at 6:15 and pepper barks ONCE at the elevator ding because thats her goodbye thing, then she settles. she gets a midday walk from a sitter who lets herself in around noon. she is alone from 8am to noon and from 12:30 to 6pm and she just sleeps through it, weve checked the camera. the "thumping during work hours" is literally her getting up to drink water or move to a different sunbeam. nothing about pepper has changed.

so my actual question to anyone whos been here. do i go into the meeting with the building manager prepared with two years of "no complaints" history and the camera footage showing pepper sleeping, or do i go in willing to compromise and trying to be the bigger person about it? because honestly i kind of want to push back hard and say the problem is the new tenant being noise sensitive and that is not a dog problem. but i also dont want to be a jerk to a manager who is just doing his job. has anyone navigated this and what worked