[AC V7] - Issue with WYSIWYG editor on Content Records

[SurajKushwaha]

Since a recent upgrade to build 9383 for William Reed, they have noticed changed behavior as part of using the Content Manager module in V7 Classic. Users would usually edit or create a content record, add in blocks they need, etc. However importantly when it comes to areas they have to enter in some text (like the editor screen inside a delivery) when entering data in the source code view it's all fine (see screenshot WR1.png). Still, if this is modified in the HTML side view, it looks fine until you switch to the source code. From there, AC automatically added additional HTML code around the users' text (see screenshot WR2.png). This behavior then breaks emails, as all this style code is part of the main JavaScript template then renders the full email (after putting all the blocks together).Questions :
1. Has this been reported by any other customers?
2. Importantly, Is there a way to stop the additional code from being added? (we dug around a lot but cannot find a specific way to control this)