Error: The truth value of an array with more than one element is ambiguous.

[chrizzlemadizzle]

I am rerunning a rather complex project that worked perfectly in January 2024 which makes use of Deforum, several ControlNet models, Video as Input etc. Unfortunately the error message does not help me understand which part of the project causes the error. Did anyone already get this error and was able to solve it?

User friendly error message: Error: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all(). Please, check your schedules/ init values.

It crashes at the second frame. The last line appearing in command window before crashing is Calculating Farneback optical flow for frames 1 to 2

I'm running on Windows 10
v1.8
python 3.10.6
all extensions are up to date

Thanks!