Hi there, I quite often group portions of my work together in the design layer. I have had this happen on two different occasions / files where I've been using the fill tool on a non-closed shape by mistake which tries to fill Infinity! After pressing the esc key to try and stop this action, all the groups in the document seem to permanently disappear from my file, even pressing undo won't bring them back! Just wondered if anyone else had experienced this? I have recently updated to 2021 but never had it before on 2017 version. Thank you!