I was trying a short flight from EGFF to EGLC. The screenshot shows the assigned STAR (in blue). Everything was fine until I reached the BIG VOR when ATC directed me to heading 045 and descend to 6000ft for ILS on rwy 27 (this is the yellow line).

At BIG I was 16000ft and couldn't descend in time to land.

Why did the ATC cut the STAR like this? Can I stop it happening again?

This is a bug in the program.  It should have let you continue with this STAR further.

I'll be working to fix this.

Thanks for the report,

Dave

Thanks.