The error message is not completely uncommon and can appear in multiple scenarios especially for ItemTypes that have a lot of client side Method in the background (like ECO). From my POV it has to do a little bit with the loading time of the elements.
From which version have you updated? I assume you know use I14 now. Did you come from I11 or I12?
If it doesn´t appear before you have updated, ask Aras and blame them [emoticon:44a8a53ad3364ea78a16c5a3229f75bb]. After update everything should work like before update. You never can test out everything during upgrade, so there will always be some minor tasks to fix afterwards. I guess they know the error message already, cause it´s really not uncommon. So in your case, simply just ask Aras support.
Let us know if you know what caused the error!
Best regards
Angela
