There was an ‘export’ icon/ symbol on the menu (below the other four symbols e.g. urban, context…) when I installed Twinmotion and till this afternoon. However, not sure is that because of too many crushes have been happened during I used the software today, I realised the ‘export’ icon has been disappeared when I opened a file. In such a case, even though I tried to reopen the same file, as well as open a new document, the error was still there. Moreover, I also tried to reinstalled Twinmotion, but the error has not been fixed.