Flux Klein 9B Returning Black Images After ComfyUI Update, No Errors Shown
beti88 · reddit · 2026-09-04
A user reports that after updating ComfyUI this morning, Flux Klein 9B only returns black images—while other models like seedvr2 work normally. No error messages appear in the command window. Everything worked the day before; the cause is still unknown, but this may help others hitting the same issue.
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