what i did was:
i went to spriter(installed the latest version from their site) and re-saved (saving as option)with the exact same name as before both files(scml,scon)
i installed the 25/11 version
i loaded my previous save with the 18/11 version of the plugin
i went to spriter animation tab in construct(bottom right corner)
deleted the 2 files(scon,scml)
right clicked on the tab,selected import,and i imported both.
after that it just worked!
i hope it works for you too.