I can confirm this bug. I ran straight into it and it completely bricks the system.


This bug is game-breaking and there is no way around it.


Right now, it's pointless to play the game with these types of bugs..


Details are below, from the Discussions forum for the game on Steam searching "Blocked Construction":


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Ruffio May 20 @ 11:14pm

Blocked construction.

Quite late in the game. I start get unable to build anything on planets. I get the message the construction is blocked by a "infinite" construction higher up in the queue, but the queue is empty. And this now spread to a few planets. I can instant buy out things, but that become awfull expensive.


Astasia

  May 20 @ 11:29pm 

It's a bug that happens when you upgrade the infinite production conversion projects while they are running on a planet. IE when you upgrade the 25% production to research project to the 50% production to research project. Bricks your system. Good times.


Ruffio

  May 21 @ 1:55am 

Well, thats just great. Sigh. So many hours playing, and just wasted. Not like I run with multiple saves spawning 10's of turns back.