Files:scan --all create several exceptions

ℹ️ Support
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what does this error mean?
my first thought was that this tells me that some files are in use but because of the exception i’m not sure if that is right that way?

Exception during scan: "files/8e0254253d757ad2a65c895909bc6cd0" is locked
#0 /nextcloud/lib/private/Files/Storage/Common.php(714): OC\Lock\DBLockingProvider->acquireLock('files/8e0254253...', 2)
#1 /nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php(593): OC\Files\Storage\Common->acquireLock('scanner::', 2, Object(OC\Lock\DBLockingProvider))
#2 /nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php(593): OC\Files\Storage\Wrapper\Wrapper->acquireLock('scanner::', 2, Object(OC\Lock\DBLockingProvider))
#3 /nextcloud/lib/private/Files/Cache/Scanner.php(331): OC\Files\Storage\Wrapper\Wrapper->acquireLock('scanner::', 2, Object(OC\Lock\DBLockingProvider))
#4 /nextcloud/lib/private/Files/Utils/Scanner.php(245): OC\Files\Cache\Scanner->scan('', true, 3)
#5 /nextcloud/apps/files/lib/Command/Scan.php(145): OC\Files\Utils\Scanner->scan('/USER', true, NULL)
#6 /nextcloud/apps/files/lib/Command/Scan.php(201): OCA\Files\Command\Scan->scanFiles('USER', '/USER', Object(Symfony\Component\Console\Output\ConsoleOutput), false, true, false)
#7 /nextcloud/3rdparty/symfony/console/Command/Command.php(255): OCA\Files\Command\Scan->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#8 /nextcloud/core/Command/Base.php(166): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#9 /nextcloud/3rdparty/symfony/console/Application.php(946): OC\Core\Command\Base->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#10 /nextcloud/3rdparty/symfony/console/Application.php(248): Symfony\Component\Console\Application->doRunCommand(Object(OCA\Files\Command\Scan), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#11 /nextcloud/3rdparty/symfony/console/Application.php(148): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#12 /nextcloud/lib/private/Console/Application.php(213): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#13 /nextcloud/console.php(96): OC\Console\Application->run()
#14 /nextcloud/occ(11): require_once('/nextcloud...')
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