 <p>Yes, it was a bug in the control, it could not start document processing/calculating while it is invisible (or is placed in an invisible container). This bug is fixed in the context of this ticket: <a href="https://www.devexpress.com/Support/Center/Question/Details/T198005" rel="nofollow">https://www.devexpress.com/Support/Center/Question/Details/T198005</a>. </p> <p>The hotfix is already requested and I believe it will be available in the nearest days.</p>