It seems that file-sharing with the android client causes some problems. After I had problems with client version 3.14.0 and 3.14.1 I updated to 3.15.1 and recognized that in most of the recent versions file sharing was an issue. Thanks to all the developers for their tireless work, but I’m afraid there are still some issues with file sharing.
If I upload files from an android device to nextcloud via sharing, the files are renamed sometimes to consecutive numbers (e.g. 35689) without extensions.
The behavior seems to be dependend on the file extension.
a.txt → OK
a.b.txt → OK
a.json → renamed
a.b → renamed
a.b.c → renamed
account.backup → renamed
account.backup.txt → OK
account.backup.json → renamed
account.backup.pdf → OK
account-backup.json → renamed
I am using nextcloud client 3.15.1 on Samsung Galaxy S8 with Android 9
Under Android 10 (Samsung Galaxy Ta S5) the behavior is less erroneous but there are still issues:
account.backup is renamed to account.backup.bin
All other examples from above are transferred with ther original names.