I have updated to VLC 3.4.0 (580) and can not playback Videos neither locally stored on the iPhone Pro 12 or via SMB from the Fritzbox attached NAS anymore. After deinstallation and new installation, they show up with black screen with sound. Minimizing by tipping the X and then re-enlarging the narrow playbar with the thumb solves the problem temporarily until certain unknown circumstances prevent even this kind of workaround. After forced new start of VLC it does not play any of the videos which used to be fine.
Any ideas? Thank you.
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Amendment: After another de-/reinstallation and a complete restart of the iPhone, the problem seems to disappear. If it comes back, I‘ll report it here. See this as a advice in case you may face similar troubles.