Hi @t-p!
I did that, but nothing helped neither “Health Check & Troubleshooting” plugin nor “Enable jQuery Migrate Helper”.
Maybe overwriting files?
Ok, forget about the total amount of ticket types we need… but the lost of “maximum amount of tickets per booking” after the 67th ticket type looks like a bug.
I was suspecting such an answer :-/ thx. 🙂
Nevertheless a nice and useful plugin!