after Cubase 8.0.5 update: folder tracks locked

Can’t hardly describe steps for reproduction, since this too happens just after some time away from the PC:

  • i’ve opened and worked in a complex project with video, audio, midi, vsti tracks
  • some of the plugins are bridged with jbridge (32->64)
  • left it open for about some hours

Returning to the project, the folder tracks are locked, can’t be moved/edited in any way.
This happens also when the PC was not in sleep mode and independently from the previously posted issues (position bar disappears, folder tracks show wrong range)

System:

Cubase 8.0.5 64 bit
Win 7 64 bit

Plugins:
too many to list, some using jbridge v1.6b3

PC:
Intel core i7 4790K
16 BG RAM
Asus Z97
RME AiO