"The message you submitted was too long, please reload the conversation and submit something shorter." Yet, the only clickable button is "Regenerate"

As long as I can remember, when I’ve input a message to 3.5 that is too long, I get the message, “The message you submitted was too long, please reload the conversation and submit something shorter.” Yet, the only clickable button is “Regenerate” which immediately delivers my too-long input. It instead should open a writable box. As a result, I need to refresh the page, which is a fine workaround, but clunky.

Yes, the same things happened to me. Is there is a new limitation or something wrong with Chatgpt 4O or chatgpt 4O with canvas?