When clicked the edit button, we have to click on the text again to start editing (Mouse pointer doesn't come until then, but should).
Also simply pressing enter doesn't doesn't then edit it. Again either click on Edit Message button or Tab + Enter does the job.
P.S.
if there is some emoji it is gone after editing unless you type it again in edit box
Also simply pressing enter doesn't doesn't then edit it. Again either click on Edit Message button or Tab + Enter does the job.
P.S.
if there is some emoji it is gone after editing unless you type it again in edit box