Tim and Joseph!
Many thanks to the both of you for helping this non-programmer get our short answer questions working again! Here is what I did, thanks to Joseph's debugging suggestion and Tim's most recent post...
On question/type/shortanswer/question.php we commented out lines 105 - 108
+ if (function_exists('normalizer_normalize')) {
+ $regexp = normalizer_normalize($regexp, Normalizer::FORM_C);
+ $string = normalizer_normalize($string, Normalizer::FORM_C);
+ }
Our short answer questions have returned to behaving as expected.
Thank you so much for your efforts and for being willing to help out a stranger.
Grateful,
Duane