photoshop does not load brushes, "Could not load brushes because this file is not compatible with this version of photoshop".

hello, i'm desperate, i imported brushes and rearranged them and then exported them for safety. now one day later all the brushes i loaded are gone and only the original brushes are there (like after a new installation of photoshop). i wanted to import the brushes i imported as safety, so suddenly the message appears:

photoshop does not load brushes, "Could not load brushes because this file is not compatible with this version of photoshop".

i already exported all my brushes 2 days ago, and i can load them without any problems, but i can't load yesterday's brushes, i just can't load those exported brushes.

thanks for the help

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