As I've been playing around with images from a CT scan with the particle system, in this thread I discovered it works fine when you only have 89 images, which I did the first time. Second time, I tried with 130 images and it just kept on repeating a single image for the last part.
I investigated and found it caps out at 102 individual images (image 0 is numbered 1 in my sequence, so they're all out by one). It doesn't give an error and it's a pretty weird number, even 99 I could have sort of expected, but it means I'm stuck with a partial model. I've been using HF3Pro, but just tested in the HF4Pro Demo and it has exactly the same limit/problem there.
Just to confirm it, I colour-coded some images, then incremented the frame number - not even keyframing it over time, just repeating the same frame throughout - and it gets stuck. Note the frame number changes, but the image doesn't in the last two screengrabs; the last image should be pink for frame 103/IMG104.
I presume I'm SOL in getting an update for HF3Pro , but there might be others who would want to be able to use more frames (even to do the same thing as I'm doing?) for HF4 Pro, so...could it have more frames? Or an error message?
Oh yes, nearly forgot: The other error is if the images are numbered (as they originally were) IMG1, IMG2,....IMG10, IMG11....IMG100, IMG101, it gets the display order wrong.
I had to rename them to IMG001, IMG002...IMG010, IMG011, etc. for it to order them correctly.
Better tag a few people, just in case. @Ady , @JoshDaviesCEO