Technical gains from retired ships not appearing in deisgn menu

[ool]

Have salvaged numerous ships from a debris field. They are retired and notice is given that a new tech has been discovered. The new tech shows up in the appropriate tech tree. However when you try to modify existing ships from the design menu the new tech isn't there.
In the case of my current game efficient and fast jump drives.

tried to upload saved game file got error," Fake path not supported". However it is the correct path as selected through your browse function.

[Retreat1970]

You may have a higher tech. In the design screen uncheck the box "only show latest components" and see if it's there.

[ool]

Bang on! Thanks!