Hello, I ran into an issue where I used a script transform on a dock that calls a function from the script library. It worked in testing, but when I put it into production, I quickly started getting binding overlays and errors in the logs that said something along the lines of: AttributeError: 'co…

[image] [IGN-6503]Project Library Script Initialization Races Ignition Are you annoyed by pseudo-random breakage in Ignition project library scripting? Odd top-level constants being garbled, or operations in the top level that have side effects running twice? …

Thank you for the quick response and the thread for reference. It sounds like the bug that's fixed in 8.3 is the issue with scripts loading properly and that should resolve using library scripts from script transforms. I'll recommend to my team that we write our functions directly in the script tran…

Correct Yes, that's the ideal case for best performance Essentially correct.

From a performance standpoint re importing modules within a function instead of in the module, I can tell you that recursively calling a function that converts Java objects into py objects for a moderately sized list can easily add 300ms or more of execution time. Ask me how I know …

Script transform calling script library function resulting in AttributeErrors

Ignition

paul-griffith June 30, 2026, 5:24pm 2

Fixed in 8.3.