Can't run two LibreOffice apps at the same time

Pro 5 and Aquaris M10 on rc-proposed.

Steps to reproduce:
1. Open e.g. LibreOffice Calc
2. Open e.g. LO Writer
3. It appears as the latter crashes and device goes back Desktop Scope window
4. Switch to LO Calc
5. LO Writer is displayed (although Unity 8 panel shows LO Calc)
6. Try to open LO Calc from the Desktop Scope
7. Device switches back to what it thinks is LO Calc, which now shows LO Writer
8. Goto Window menu in LO - displays both Calc and Writer, of which Calc shows as active
9. Try to switch to Writer in the menu and Calc still shows as active in the meny while Writer is the actual window displayed

It is clear that Ubuntu Touch gets confused about which LO app that is open/active and that it is not possible to run more than one of the apps at once.