There is something odd with the new version of PL (6.4) . I exported 26 jpegs I was told many failed as flicker wasn’t available, but they were there on flicker OK I could see them pop up on my phone as PL said they hadn’t been exported.
All were taking a very long time, Task manger said the CPU was only being used between 1 and 3% and they took nearly 40 minutes. I did a robot and exported 3 more and all were exported said PL said all failed. Again the CPU was 1-3% used. This a AMD 9 39000X that normally will export to flicker in under a minute an image.