Error uploading large files to remote Docker instance

[diner1780]

Sync operation goes through successfully for all other files except for these 5 images (size of each file shown below).

Size of the remote vault:

---

[2026-09-06T13:56:48.454Z] INFO file_sync_started direction="upload" operation="upsert" path="Media/20260902_162401.jpg"
[2026-09-06T13:56:48.456Z] INFO file_sync_started direction="upload" operation="upsert" path="Media/20260902_161521.jpg"
[2026-09-06T13:56:48.456Z] INFO file_sync_started direction="upload" operation="upsert" path="Media/20260902_160724.jpg"
[2026-09-06T13:56:48.457Z] INFO file_sync_started direction="upload" operation="upsert" path="Media/20260902_155804.jpg"
[2026-09-06T13:56:48.458Z] INFO file_sync_started direction="upload" operation="upsert" path="Media/20260902_160724_proc.jpg"
[2026-09-06T13:58:00.314Z] INFO connection_state_changed state="reconnecting"
[2026-09-06T13:58:02.026Z] INFO connection_state_changed state="connecting"
[2026-09-06T13:58:44.546Z] INFO connection_state_changed state="live"
[2026-09-06T13:59:24.570Z] INFO connection_state_changed state="reconnecting"
[2026-09-06T13:59:27.681Z] INFO connection_state_changed state="connecting"
[2026-09-06T14:00:01.658Z] INFO connection_state_changed state="live"
[2026-09-06T14:02:11.904Z] INFO connection_state_changed state="reconnecting"
[2026-09-06T14:02:11.930Z] ERROR file_sync_failed direction="upload" operation="upsert" path="Media/20260902_161521.jpg" reason="prepare_failed"
[2026-09-06T14:02:11.939Z] ERROR file_sync_failed direction="upload" operation="upsert" path="Media/20260902_160724.jpg" reason="prepare_failed"
[2026-09-06T14:02:11.940Z] ERROR file_sync_failed direction="upload" operation="upsert" path="Media/20260902_160724_proc.jpg" reason="prepare_failed"
[2026-09-06T14:02:11.942Z] ERROR file_sync_failed direction="upload" operation="upsert" path="Media/20260902_155804.jpg" reason="prepare_failed"
[2026-09-06T14:02:15.309Z] INFO connection_state_changed state="connecting"
[2026-09-06T14:02:20.713Z] ERROR file_sync_failed direction="upload" operation="upsert" path="Media/20260902_162401.jpg" reason="prepare_failed"
[2026-09-06T14:02:20.732Z] ERROR sync_error phase="auto_sync" classification="unexpected" name="SyntaxError" message="Unexpected end of JSON input"
[2026-09-06T14:02:20.740Z] WARN retry_scheduled attempt=3 delayMs=4000
[2026-09-06T14:02:25.305Z] INFO work_scheduled mode="immediate"
[2026-09-06T14:02:27.093Z] INFO file_sync_started direction="upload" operation="upsert" path="Media/20260902_162401.jpg"
[2026-09-06T14:02:27.097Z] INFO file_sync_started direction="upload" operation="upsert" path="Media/20260902_161521.jpg"
[2026-09-06T14:02:27.099Z] INFO file_sync_started direction="upload" operation="upsert" path="Media/20260902_160724.jpg"
[2026-09-06T14:02:27.101Z] INFO file_sync_started direction="upload" operation="upsert" path="Media/20260902_155804.jpg"
[2026-09-06T14:02:27.102Z] INFO file_sync_started direction="upload" operation="upsert" path="Media/20260902_160724_proc.jpg"
[2026-09-06T14:03:07.333Z] INFO connection_state_changed state="reconnecting"
[2026-09-06T14:03:10.351Z] INFO connection_state_changed state="connecting"
[2026-09-06T14:03:53.256Z] INFO connection_state_changed state="live"
[2026-09-06T14:05:04.318Z] INFO connection_state_changed state="reconnecting"
[2026-09-06T14:05:08.313Z] INFO connection_state_changed state="connecting"
[2026-09-06T14:07:46.526Z] ERROR file_sync_failed direction="upload" operation="upsert" path="Media/20260902_160724.jpg" reason="prepare_failed"
[2026-09-06T14:07:46.529Z] ERROR file_sync_failed direction="upload" operation="upsert" path="Media/20260902_155804.jpg" reason="prepare_failed"
[2026-09-06T14:07:46.531Z] ERROR file_sync_failed direction="upload" operation="upsert" path="Media/20260902_160724_proc.jpg" reason="prepare_failed"
[2026-09-06T14:07:48.436Z] ERROR file_sync_failed direction="upload" operation="upsert" path="Media/20260902_162401.jpg" reason="prepare_failed"
[2026-09-06T14:07:53.201Z] ERROR file_sync_failed direction="upload" operation="upsert" path="Media/20260902_161521.jpg" reason="prepare_failed"
[2026-09-06T14:07:53.212Z] ERROR sync_error phase="auto_sync" classification="unexpected" name="SyntaxError" message="Unexpected end of JSON input"
[2026-09-06T14:07:53.224Z] WARN retry_scheduled attempt=4 delayMs=8000

---

Update: After a while, I lost access to my vault and now I can't connect to it

---

Synch sync diagnostics
pluginVersion="0.4.6"
entries=4

[2026-09-06T14:44:57.271Z] INFO sync_started source="startup"
[2026-09-06T14:44:58.280Z] INFO sync_reconciled source="startup" filesScanned=297 filesQueuedForUpsert=297 filesQueuedForDelete=0
[2026-09-06T14:44:58.281Z] INFO connection_state_changed state="connecting"
[2026-09-06T14:44:58.993Z] ERROR remote_vault_unavailable reason="access_denied"

[hhhjin]

I think this was caused by multiple uploads running in parallel on a limited-bandwidth connection.

I've made some improvements to handle this case better. Could you update to the latest version, remove the existing remote vault, reconnect it, and let me know if the issue still occurs?

[diner1780]

Getting this error on ver. 0.4.7

---

Synch sync diagnostics
pluginVersion="0.4.7"
entries=22

[2026-09-07T17:06:36.633Z] INFO sync_started source="startup"
[2026-09-07T17:06:37.359Z] INFO sync_reconciled source="startup" filesScanned=297 filesQueuedForUpsert=297 filesQueuedForDelete=0
[2026-09-07T17:06:37.359Z] INFO connection_state_changed state="connecting"
[2026-09-07T17:06:37.586Z] ERROR sync_error phase="auto_sync" classification="unexpected" name="ApiRequestError" message="vault sync is temporarily paused for repair" code="forbidden" status=403
[2026-09-07T17:06:37.601Z] INFO connection_state_changed state="reconnecting"
[2026-09-07T17:06:37.623Z] INFO work_scheduled mode="immediate"
[2026-09-07T17:06:37.628Z] INFO connection_state_changed state="connecting"
[2026-09-07T17:06:37.845Z] ERROR sync_error phase="auto_sync" classification="unexpected" name="ApiRequestError" message="vault sync is temporarily paused for repair" code="forbidden" status=403
[2026-09-07T17:06:41.566Z] ERROR sync_error phase="auto_sync" classification="unexpected" name="ApiRequestError" message="vault sync is temporarily paused for repair" code="forbidden" status=403
[2026-09-07T17:06:41.578Z] INFO connection_state_changed state="reconnecting"
[2026-09-07T17:06:48.309Z] INFO connection_state_changed state="connecting"
[2026-09-07T17:06:49.328Z] ERROR sync_error phase="auto_sync" classification="unexpected" name="ApiRequestError" message="vault sync is temporarily paused for repair" code="forbidden" status=403
[2026-09-07T17:06:49.333Z] INFO connection_state_changed state="reconnecting"
[2026-09-07T17:07:02.305Z] INFO connection_state_changed state="connecting"
[2026-09-07T17:07:02.771Z] ERROR sync_error phase="auto_sync" classification="unexpected" name="ApiRequestError" message="vault sync is temporarily paused for repair" code="forbidden" status=403
[2026-09-07T17:07:02.780Z] INFO connection_state_changed state="reconnecting"
[2026-09-07T17:07:16.334Z] INFO connection_state_changed state="connecting"
[2026-09-07T17:07:17.054Z] ERROR sync_error phase="auto_sync" classification="unexpected" name="ApiRequestError" message="vault sync is temporarily paused for repair" code="forbidden" status=403
[2026-09-07T17:07:17.057Z] INFO connection_state_changed state="reconnecting"
[2026-09-07T17:07:34.401Z] INFO connection_state_changed state="connecting"
[2026-09-07T17:07:34.852Z] ERROR sync_error phase="auto_sync" classification="unexpected" name="ApiRequestError" message="vault sync is temporarily paused for repair" code="forbidden" status=403
[2026-09-07T17:07:34.854Z] INFO connection_state_changed state="reconnecting"

[algiadev8]

The logs seem to suggest that the remote vault may have been paused and could require repair.

As a possible workaround, you could back up your local vault first, delete the remote vault, update the Synch server to the latest version, and then recreate the remote vault. This might resolve the issue, although I haven’t verified it.

I’m also working on adding a repair button, which may provide a safer and easier recovery option once it’s ready.