I found and eliminated the issue. The updating script for inventory items had a typo. Doing the alchemy introduction with Helen caused it to lose the 'target' for the potions.
I'll issue a hotfix for this in a few hours.
Thank you very much. Keep up the great work.
I just downloaded the 0.30.1H update and applied it and my issue seems to be fixed now. Thank you for being very responsive
Glad it worked out.