Bought a non WoTC DnD module and MM tokens images wont overwrite SRD content

I recently bought a recent module that was not published by WoTC that takes player up to lvl 15. I also bought the MM for the premade tokens. When I try to place a token in the premade module, if the token is non-custom and in the MM, the token will show the SRD image instead. There are well over 100 different tokens that just show the basic SRD image. Do I have to create a new token for each one and edit each monster default token image and replace every token? Is there any way to get the MM to overwrite the SRD content or a quick workaround? 

I'm currently preparing for an Odyssey of the Dragonlords campaign and am wondering the same thing. Replacing the tokens manually is fairly time consuming, but not too difficult. (I hope this doesn't count as necro'ing, but I wanted to avoid making another thread!)

Not sure why this got a month without any response... but to replace SRD content with MM content you'd need to delete the SRD version and drag from the compendium as it uses name matches to avoid duplication. Another option might be to drag and drop the compendium ONTO the SRD version (opened on the VTT) which would overwrite it and presumable update it but that might just be the information and not the token (untested).