At file access problems while open last session (2nd menu entry in file menu) acrobat shows an pop-up notice only telling there is a problem (s. attached image, German version) but not showing which file this error-pop-up belongs to.
Hence, the user is less informed to look for the problem and probably open the file manually.
In case of more then one file having an actual access problem a Summary and a "try again" option would be very helpful.
Belongs to Acrobat Pro DC 2019.012.20035.4663.