I tried to simulate your issue but could not.
- tried several DarkPlaces builds.
- double-checked the content from my 2 release packs
The thing which is really wired is, that you only have an issue with the ID1 rocket.
That makes absolutely no sense.
If one shader work, then all shader must work.
Please do/check the following:
Open the shader file in "scripts" folder with notepad.
Search for "b_id1rocketbar" (without quotes and without .tga).
You must find it.
a little below the animation, should be:
animMap 10 textures/b_ID1rocketbar_00.tga textures/b_ID1rocketbar_01.tga ... and so on (until _15)
Then it should work.
Use another program to unzip my release pack.
I used classic WinZip to pack it.
Seanstar told me several days ago, that he experienced problems, when using 7zip.
Maybe that could be the reason.
Its really wired, because all other shaders work.
They are all in the same file.
Until now nobody else had this issue.
Hope I could help a little.