vst~ not reading .vst3preset file

    Jul 12 2021 | 1:44 pm
    The goal: I want to save and retrieve preset files for vst, vst3 and audiounit plugins. The problem: VST3s fail to "read" a saved preset.
    I have made a patch to illustrate my problem. Please follow the steps inside it to see by yourself.
    After several tests, I didn't find a workaround. In fact, it seems to be a bug in the vst~ object. Am I doing something wrong here?