If JCE is installed as the default editor, and you click the first "Edit text" button in the text addon, then the builder crashes. JCE of the penultimate version.
https://mega.nz/file/n6AF2TpQ#_oPOe87A1lRYtSaQUmKZW2Uwpk-EhZ6u6x_5JP5HvD0
JCE is installed by default. And it is also very important to make its output in a large window, and not in a micro window.