Yes, its true, the chat log is buggy and reopen/scrolling/dance around your desk praise the communication god to bless you may help, but there is a 2nd issue:
We dont see the text we are currently typing ... its not the log after we sent a message, its the google-keyboard with text-color in white in text-field having a white background.
Thx, you may close this one as well.
Left by design. The fixed payout times are the worst part of this game and makes it absolutely family-unfriendly.