I have been using a 1 minute delayed send, which is just enough time to realise you have clicked send and forgotten to add an attachment or something similar. Following the update it does not work. Clicking “Send in 1 minute” generates an error message that the time for Send later has already passed. Rather annoying.
I have disable and re-enabled the delayed send in mail settings and it has not resolved the issue.
Any suggestions for how to fix?