Reported in 1.10.0, reproduced in 1.11.0
Another bug related to crew quarter sizes. While the crew quarter sizes for really short deployment times have been fixed, it is still possible to have negative available crew quarters occasionally
The function number - N/A
The complete error text - N/A
The window affected - class design window
What you were doing at the time - testing
Conventional or TN start - TN
Random or Real Stars - Real
Is your decimal separator a comma? - No
Is the bug is easy to reproduce, intermittent or a one-off? - Easily reproduced
If this is a long campaign - say 75 years or longer - let me know the length of the campaign as well - N/A
2 examples below:
10 crew (2 engineering spaces without anything else), 0.1 months deployment time

75 crew (14 engineering spaces and 1 bridge without anything else), 14 months deployment time
Confirmed and Fixed