When a rocket is on a mission, dupes will deliver oxylite to the solid oxidizer tank (which is currently in space). The oxylite immediately gets ejected and offgases, wasting oxylite.
Also, when a rocket returns from space the dupes fail to deliver oxylite to the solid fuel thruster unless it is destroyed and rebuilt.
Steps to Reproduce
For the first issue: Launch a petroleum engine into space with a solid oxidizer tank and allow the gantry to be extended. I am not sure if other types of engines experience this as I have no had an opportunity to use them yet. I will update if applicable. For the second issue: Launch a steam rocket with a solid fuel thruster above it and have it return, with a gantry extended. Priority can be as high as yellow and dupes will not deliver more oxylite. Destroy and rebuild the thruster and they will begin delivering again as normal.
This issue has not been confirmed by a developer yet.