Actually I'm writing a Facebook Messenger Bot. Characters limit for each sending message is 320, so I made simple function to split messages on parts. I set the limit to 315, 5 characters less than Facebook.
Spend 3 days on finding solutio why messenger is sending only last part of message.
Today I made a change, set my character limit to 316 and what? It's working! Set it to 320? Working!
Messenger has problem only when it's 315!
Piece of shit...