ODT export failing

[Fraga, Eric]

Hello all,

can anybody suggest what may be causing an error of the form:

org-odt-export-to-odt: OpenDocument export failed: FIXME: Unable to resolve 
[...]

The very long error message gives no actual detail as to what actually
failed to resolve.

I will try with emacs -Q etc. but challenging due to the large number of
customizations I have.

thank you,
eric

PS - I hate having to prepare Word formatted documents. 🙁
-- 
: Eric S Fraga, with org release_9.6.7-661-g34ee6f in Emacs 30.0.50