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App crashes when opening folder after resetting encryption and re-encrypting (metadata is null exception) #15404
Description
⚠️ Before posting ⚠️
- This is a bug, not a question or an enhancement.
- I've searched for similar issues and didn't find a duplicate.
- I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
- I agree to follow Nextcloud's Code of Conduct.
Steps to reproduce
- Reset encryption in web app
- open android app
- set folder as encrypted
- confirm mnemonics
- tap/open encrypted folder
- crash
Expected behaviour
Everything up to point 5
Actually opening showing the encrypted folder
Actual behaviour
App crashes
Android version
16
Device brand and model
Pixel 8 Pro
Stock or custom OS?
Stock
Nextcloud android app version
3.32.2
Nextcloud server version
30.0.12 (hetzner saas)
Using a reverse proxy?
I don't know
Android logs
Cause of error
Exception in thread "Thread-31" java.lang.IllegalStateException: metadata is null!
at com.owncloud.android.operations.RefreshFolderOperation.synchronizeData(RefreshFolderOperation.java:513)
at com.owncloud.android.operations.RefreshFolderOperation.fetchAndSyncRemoteFolder(RefreshFolderOperation.java:433)
at com.owncloud.android.operations.RefreshFolderOperation.run(RefreshFolderOperation.java:246)
at com.owncloud.android.lib.common.operations.RemoteOperation.run(RemoteOperation.java:387)
at java.lang.Thread.run(Thread.java:1119)App information
- ID:
com.nextcloud.client - Version:
30320290 - Build flavor:
gplay
Device information
- Brand:
google - Device:
husky - Model:
Pixel 8 Pro - Id:
BP2A.250805.005 - Product:
husky
Firmware
- SDK:
36 - Release:
16 - Incremental:
13691446
Server error logs
Additional information
I'm not on a preview version or anything so I don't know where the logs are.
I'm using hetzner as host.
Activity
alperozturk96 commentedon Aug 21, 2025
@mybigfriendjo Hello
Thank you for the report.
Could you try with this version?
mybigfriendjo commentedon Aug 21, 2025
I still seem to have the same issue. I didn't do the whole procedure again but just tried to open the folder again in the new app.
Cause of error
App information
com.nextcloud.client30320353gplayDevice information
googlehuskyPixel 8 ProBP2A.250805.005huskyFirmware
361613691446[-]android app crashes when opening previously encrypted folder[/-][+]App crashes when opening folder after resetting encryption and re-encrypting (metadata is null exception)[/+]rmelotte commentedon Oct 27, 2025
FWIW this is reproducible on 3.34.0.
I believe for me it started happening after the upgrade to NC 32.0.0 which disabled the e2ee app.
After enabling it again, e2ee files and folders have "hash-like" names, and pulling to refresh causes the exception shared in the OP.
mybigfriendjo commentedon Jan 28, 2026
Tried again today as I had some time. Server version is 31.0.10 (Hetzner)
Still the same error on the gplay version
Cause of error
App information
com.nextcloud.client30350290gplayDevice information
googlehuskyPixel 8 ProBP4A.260105.004.E1huskyFirmware
361614587043mybigfriendjo commentedon Apr 14, 2026
Server Version 32.0.6
Cause of error
App information
com.nextcloud.client330000190gplayDevice information
googlehuskyPixel 8 ProCP1A.260305.018huskyFirmware
361614887507Hakbarth commentedon May 9, 2026
For me it happens when I try to upload a file
Cause of error
App information
com.nextcloud.client330010090genericDevice information
samsunge2sSM-S926BBP2A.250605.031.A3e2sxxxFirmware
3616S926BXXSECZD1alperozturk96 commentedon May 11, 2026
Hello
Fixed via:
#16916
#16944
Will be included in next version.