Hello,
I have the exact same issue. Would someone be so kind as to give a step by step guide to achieve this. Unfortunately the advise given above means very little to me as I’m a compile novice.
“You can fix it by changing the IDs in the wp_terms, wp_termmeta and wp_term_taxonomy tables. Set the type of the IDs to ‘auto increment’
Im using the Sydney Pro theme on WP.
Many thanks!
Peter