v5.5 might have broken flat field handling

[panomies]

All I know that flat field which worked perfectly on v5.4 with user camconst.json, and now I get magenta corners on v5.5 (where the exact same data is now embedded on RT’s main camconst.json, doesn’t seem to matter if the data is also in user camconst.json…)

here are the files: https://filebin.net/rml6xaeppqnlybbm

what am I doing wrong here?

[heckflosse (Ingo Weyrich)]

Here’s what I get with 5.5. Left is without, right with flat field