BUG #2469 FIXED IN 1.02 :Fortifications bug ?

[Bryaxis]

Fortifications bug ?

In all my games ( now more than 25 ) I've only seen once high level fortification ( level 6 ) and it was with 1.00. And I seem unable to acquire the possibility to build any fortification above level 3, even when I've had all the techs for more than 10 years. Is this a bug ?

 

[Wolf52]

Forts invention

Playing as switzerland i had level 2 fortification technology. I however passed the death date on the invention of level 3 forts, but after researching the tech that would have given me the level 3 fort invention i triggered it manually and recieved level 3 forts. Now i have encountered the same situation with level 4 and 5 forts, but after triggering those events manually after researching the prerequisites and after the death date for the inventions the text for the inventions say nothing about increasing fort level (events 108 and 111). Even when triggered manually those events should give me level 4 and 5 forts right?