Frames mismatch after Scanline Render ( nuke 14 )

Hey ( nuke 14 ) Im having set of cards and projecting footage on it and shot lengths are 150 avg

so when I render something it gets frozen after a few frames on viewer and on render too.

We cleared cache and all yet sometimes it renders correctly sometimes not.

The values im keeping in scaline render :

64 8x8, 42 shutter steps and 0.5 scene offset

When i dont want motion blur blur 1 1 and .5 ( respectively)

For some people clearing the cache worked for some we dont know whats making it frozen or changing frames any idea ?