Issue Summary

When editing a page in Confluence 10.2.17, the format change(change to Heading 1 ~ Heading 6, Bold, Italic..) is disabled in UI, after clicking 'Preformatted' from tool bar.
This problem does not happen in 9.2.x.
Not sure if this problem is related to CONFSERVER-104454.

Steps to Reproduce

1. Creating a page
2. Input a word of 'test' into the page
3. Selecting above word , and click 'Preformatted' from tool bar

Expected Results

The word can be changed to other format (e.g. Heading 1 ~ Heading 6, Bold...)

Actual Results

The word cannot be changed to other format because the controls are disabled

Workaround

This problem seems only blocking mouse, keyboard shortcut seems working well.
For example, if you want to set heading 1 for the word, you may use the shortcut of "Ctrl + 1" (or "Cmd +1").