We have a fix for the modification date issue . The script that next cloud provided doesn’t work on snap.
Create Bash Script .
Sudo nano dates.sh
Chmod 755 dates.sh
./dates.sh
files=$(find . type f -newermt "1969-01-01" ! -newermt "1971-01-01")
IFS=$'\n'
for f in $files
do
touch -m $files
done
Lastly run this command which can take some time.
sudo nextcloud.occ files:scan --all -vvv