[mrmikel]

After trying to insert a phrase using phrase express, the editor hangs indefinitely. It is unrecoverable.

I thought it might be phrase express, but I inserted the same phrase repeated in Sigil without hang.

Using the same document, the insert process takes visibly longer in the editor than it does in Sigil. In the editor, it takes two undos to undo an insert, but only one in Sigil.

I have found even typing will do this. I am attaching this document which I know is poorly formed. The editor has handled this sort of document before, but now it is hanging.

The action is put cursor inside paragraph tag, press space (at this point it hangs).

Later--even after book says no errors, still doing this.
But after running through Sigil and saving, the document no longer causes a hang.