Hello Alex
On Chrome i have the same problem.
The thing is: if i try to save change Pin for 1835274 times – somehow it will work (no error message while moving the pin). So i think it doesn’t depense on the “multiplie city” – which it isnt.
I just made a quick website for shops in my city who offers delivery service while the corona crisis – i dont want to add a couples of (chargeable) plugins. isnt it possible just to deactivate the error message?
Best regards
Alex