Copying text and pressing enter will cause a change in font style

Hello, respected ONLYOFFICE developers. I encountered an error while using online Word. Copying text from another document to a blank document on ONLYOFFICE and then pressing enter to return to the blank area will result in a change in font style, such as an increase in font size. How to modify the code in SDK JS to solve this problem? We look forward to your reply.

OS version: Win X64 and Edge
App version: 7.3.0 or 8.0 +
Downloaded from: docker.

Hello @JavaSwordsman

I think a bit of clarification is needed here. Category is set as Desktop Editors, but you are definitely referencing information of Document Server. You are using ONLYOFFICE Docs, aren’t you?

In general, can you please record this behavior to share with me for better visual understanding of performed steps and results?

Also, it is not clear what this means. If variety of versions, then please note that there is version 8.1.1 is available.