Setup:
Start in a Mono channel region that is adjacent to another Mono channel region. God rez and attach the item 'Glasses' via UUID 64c451ce-7d4a-872c-62f1-aecc8614b38b.
Repro:
1) Open the contents of the Glasses and confirm that the script 'textureUV slide' throws the 'missing from database' error when you attempt to open it.
2) Leave edit mode and attach the glasses. You should see animated scrolling eye texture.
3) Cross the region boundary.
Results:
"Failed to create script, unrecognised bytecode format" error occurs every time you cross a Mono region boundary. This also happens with another piece of content owned by this resident, an RV with a wheel control script that is also 'missing from database'.