on Rhino for Mac (V5.3.3 5F88), if multiline text is entered into a textobject dialog box, rhino gets stuck in some kind of loop where it stops processing mouseclicks. at this point it appears to be waiting for an insertion point, but wont accept any clicks to do the insertion. the command box it will accept new commands typed in, and the status bar it prompts for the new command’s input, but refuses to let you click anywhere. its like the part of the interface that is looking for a mouseclick has frozen up.
i can recreate this reliably from a new file every single time. font doesnt matter, whether its curves, surfaces or solids doesnt matter. if its a single line, it works fine. as soon as there is a second line, it dies in the way ive described.