Problem with Decomb/Yatta

[Zarxrax]

I am using Yatta to IVTC an anime. When I encode the anime, the override files get used properly. However, if I seek within vdub to try and examine the frames, the override files are not respected. I get interlacing and incorrect decimation all throughout the video, making it impossible for me to perform simple things like syncing up subtitles.
Is this a bug in decomb? And is there a solution to this problem that I can use?

[mf]

I think I've seen neuron2 mentioning somewhere that random access indeed causes weird behavior, and this is inherent to the filter or something.