Game crashing when settlers build the encrypted data terrain improvement

[0rion79]

Hi, just wanted to report that the game crashes when workers try to build the terrain improvement to get the encrypted data.
I tried later on in the game and the bug did not repeat, as if new techs "fixed" it.
Is it possible that there is a mismatching among tech tree, available resources and workers' skills to terraform?

PS: the game really needs some serious rebalancing, tribes starting with modern units are way too strong.