here is a link for videofile
this is a russian service like google drive or like dropbox
to download videofile click the button with black arrow down icon
https://yadi.sk/i/jHcJuEjef6fzG
to reproduce this feature
1. open new project
2. insert videofile
3. spilit it for 4-5 random pieces
4. shuffle them randomly, lets say 1,2,3,4,5 make it 4,2,1,5,3
5. put cursor randomly and press Space key
Bug happens not all the time but only after cuts (splits), therefore I think that somehow it may be dealth with unfinished hidden preprocessing (my notebook is not very powerful it is Core2Duo, 4Gb RAM, SSD 60Gb, Radeon HD6450 1Gb