I managed to Design a missle fire control with zero range -- twice. I believe that what happened was that prior to hitting create, the last thing I did was click the Antenna size parameter. It was highlighted as 4, but the design got created with a range of zero. When I clicked some other drop box and then clicked Create the design came out as intended but had the same name. One cannot tell there is zero range until the racial tech is researched then the design shows up in the Item List as a zero range fire control.
I have seen this for beam FCs, but I think this was intended as they were developed for gauss.
Are you sure your antennasize did not accidentally get reduced to 0.33?
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a cosmetic bug in racial techs:
My lasers have one or several [TAB] in front of their names/entries in the build ship component tab of Industry.
AFAIK this effect is limited to this screen.
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a typo or misnamed event:
circumstances: when using terraformer to remove a gas (methane), I forgot to set the safe atmosphere to zero.
the event reads:
Gas
Added : Subtraction of Methane
to atmosphere of Colony#1 has been halted as specified atm has been reached.
Clearly it should be:
Gas Removed : Subtraction of Methane
from atmosphere of Colony #1 has been halted as specified atm has been reached.
even better would be:
Environmental Report: Subtraction of Methane from atmosphere of Colony #1 has been halted as specified conditions have been met.

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related to troops/teams existing on after destruction of transport. (probably already reported multiple times)
Teams that are left on a pop that is abandoned still exist, but have no location.
The officers still live, but need to be deassigned from the team manually through the leaders interface, they will then be reassigned to Homeworld.