Just completed by checking test and yes, a touch more difficult than last year but I'd got through all the questions or so I thought!!
On the very last one - I'd selected my answer with 5 seconds remaining and no final 'Continue' or 'Submit' button appeared - leaving the test to time out.
I've emailed them explaining which answer I'd picked but couldn't submit. Doubtful it'll help at all - but will be a shame if that's the make or break for me proceeding...