Bug in peace resolutions?

[unmerged(1640)]

Playing russia, I was happily working on extending my
realm westwards, and decided to attack Hansa (also they had
previously bashed Denmark, one of two countries not hating
my guts .

I attacked, taking control of eastern and western
Pommerania, and continued to besiege Holstein. Of course,
in a ceremonial event, the alliance of Poland, Georgia,
Spain, Bohemia attacked me. After a while, Holstein was
at the brink of collapse, and when polan offered a white
peace I was more than happy to accept.

However, a while after this, I noticed that eastern and
western pommerania was again under Hansa control? What
gives? Their only forces was in Jylland. I assume this
happened during the peace with Poland, but they were never
involed in any fighting on Hansa territories.

I see Hartmann has a peace-bug that is noted as fixed in the
upcoming patch in his bug-list, but as he has deleted the
info of the bug in the process, I have no clue if this is
related.

 

[BiB]

It's another peace bug.

But that what happened there sounds weird (not that it matters much as I'm xure u'll run over them again )

 

[unmerged(1640)]

> But that what happened there sounds weird (not that it
> matters much as I'm xure u'll run over them again )

Most likely, yeah. It is a pain to lose two or three
provinces you have taken, though. It helps having Holstein,
as well, I don't have to sail past Danzig with my
pitiful, never winning navy to conquer them next time

Oh well, given the current pacing I should have another
3 wars with Hansa and about 30 with Poland the 192
years left of the game...

 

[Dark Knight]

It's possible that another country's armies 'liberated' the provinces from your control.