Security software or automated cloud backups are actively scanning or locking the .CDX file when the application tries to access it.
Right-click game > Properties > Local Files > Verify integrity of game files . cdx error 0x3 1 exclusive
When DBF/CDX files reside on a network share (common in legacy systems), network latency or partial SMB protocol mismatches can cause file handles to drop momentarily. An exclusive open attempt during a micro-outage yields error 0x3. Security software or automated cloud backups are actively
Security software or automated cloud backups are actively scanning or locking the .CDX file when the application tries to access it.
Right-click game > Properties > Local Files > Verify integrity of game files .
When DBF/CDX files reside on a network share (common in legacy systems), network latency or partial SMB protocol mismatches can cause file handles to drop momentarily. An exclusive open attempt during a micro-outage yields error 0x3.