Yes. 4.,8 does seem to have some issues. For example, I have 4 computers - if I create an executable on my desktop it can run fine on that same machine, but if I try to run it on my laptop it tries to run then closes down. The very same .hepx file complied in 4.7 runs perfectly on both machines. I’ve tried all sorts of combinations of features and security options but it doesn’t make any difference. I have moved back to 4.7 and I feel let down by GDG since the new features of 4.8 would be very useful to me and having paid for the upgrade I have been (maybe unwittingly) cheated. I have raised an issue with support but so far have not received a reply