Private browsing deletes Temporary Containers

[xavierve]

Hi. When I open a Private Browsing instance of my firefox, all my temporary containers of main (non private) Firefox are deleted.

And if I open just Private Firefox (without no normal Firefox opened), it also deletes my temporary containers when later I open non-private Firefox, using feature of "open firefox with tabs opened when I closed". Tabs are opened but in not in the temporary containners they where.

I didn't found a solution for this. Is it just me?
thanks in advance