- An exception occured while handling user message 'hello'. Error: blocks[:,0] has incompatible row dimensions. Got blocks[1,0].shape[1] == 35, expected 36

after enabling api to run rasa in a webchat and after a first conversation i see this error somethines…why is that?

What version of Rasa are you using? What is the exact message sent to the bot when this error comes up? Also please post your NLU configuration.