webaccess sometimes truncates last few words

GW12.0.1 webaccess. Have seen this a few times now; I compose and send an email in WA, then when I look at the sent mail, the last part of the msg has been truncated, some words or letters missing. I suspect this is a problem with the auto-save feature, occasionally it seems it is sending out the last auto-saved mail rather than the final mail.

Anyone else seeing this?
Thanks