Not really. My advice was to start uploading. From your OP - "I haven't uploaded anything in months."
YouTube views are a zero sum game. When someone's video gets a big decrease in daily views, it's because someone else's video has taken its place and that other channel is now getting more daily views. Usually someone who is uploading regularly. YouTube itself is getting the same number of daily views. Nothing is broken. There is no bug. I suppose you didn't complain that Youtube was broken when your channel got a sudden increase in views right?
Known issues are listed here:
There's 1 issue listed there regarding sudden drops in sub counts. That says they fixed it 2 days ago. Maybe that's your issue. If so, there was a link on that page to report it.
Other than that - I guarantee you that they're not looking into anything at all. That's just a standard help-desk response by an agent who has hundreds of emails to reply to.
You came here for advice. My advice is to start uploading regularly again. Otherwise what's your plan? Never upload again? I mean you have 2 choices.
I cannot upload regularly. 1 video a month at best, so my videos must perform great. I will upload soon if they don't reply me back. The guy said engineers are looking into it and it's confirmed there's a problem. It would be real jackasses if they are just replying with a generic fake reply. They replied back two times. This type of support is supposedly only for 100k+ channels so it's more personalized, I was hoping this would be useful.
As far someone taking my place and zero sum game, that's right, however, the loss in subs and views took one day, 1, it crashed hard like the stock market. Doesn't seem normal at all. Also, some other guy im talking to, told me he's going through the same thing. Massive loss in just one day, same day actually. And he uploads regularly. He has recently uploaded a video and it didn't even get 1000 views. He was average 400k views daily before this bs happened. Yep now im really worried at uploading my video.
He says this went on for two months last time until it got fixed.
If I upload and the thing is really broken and it doesn't get the views it should get im done with youtube, or if they want trash then I will give them trash, I will just mass produce low quality stuff.