Inbox Emails Automatically Going Into Subfolder Since Last Thunderbird Update

A couple of weeks ago, after Thunderbird's latest update, my regular Inbox emails started going into my Online Orders subfolder. No matter what I have tried, I can't fix this. I have an exchange account using Owl and I have reached out to all parties and no one knows what to do. Today as I was investigating on my own, I opened the QuickMove menu down and noticed my accounts listed and oddly, the subfolder named Online Orders had a label to the right saying Inbox, while the actual inbox didn't have anything listed beside it. This doesn't seem like it should be right as the Online Orders folder is only supposed to filter any orders coming in from my website into there so I can see the notifications easier than having them mixed in the regular inbox emails.

I'd like to know how I can fix this issue so it works properly like before the latest update. I want all my regular emails that don't have filtering rules to go into and stay in my inbox unless they have filters directing them otherwise.

Is anyone else having this issue and/or does someone have any way to remove that inbox label from the Online Orders Subfolder? Screenshot of the issue attached. Orange box indicates the Online Orders subfolder showing Inbox to the right.

Start by reproducing the issue in the QuickMove menu with a Thunderbird Exchange account using Owl, checking why the Online Orders subfolder is labeled Inbox instead of the actual Inbox. Done means the Inbox label is correct, regular messages remain in Inbox, and Online Orders continues receiving only messages directed there by its filtering rules.

Written by the indexing model from the issue text.