<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Thank you for the suggestion. Unfortunately, when I copied the given code to a test file and ran it, there were no error messages, but the execution crashed. I attach the .tex file and the log file.<div>Could the problem be connected with the warning </div><div><span class="Apple-tab-span" style="white-space:pre">        </span>Error: /undefined in Band
</div><div>?</div><div><br></div><div></div></body></html>