--- a/services/sync/modules/engines.js
+++ b/services/sync/modules/engines.js
@@ -566,19 +566,27 @@ Engine.prototype = {
         allDeltas = this._json.decode(data);
         deltas = [];
 
       } else { // this._snapshot.version > status.maxVersion
         this._log.error("Server snapshot is older than local snapshot");
         break;
       }
 
-      for (var i = 0; i < deltas.length; i++) {
-        snap.applyCommands.async(snap, self.cb, deltas[i]);
-        yield;
+      try {
+        for (var i = 0; i < deltas.length; i++) {
+          snap.applyCommands.async(snap, self.cb, deltas[i]);
+          yield;
+        }
+      } catch (e) {
+        this._log.error("Error applying remote deltas to saved snapshot");
+        this._log.error("Clearing local snapshot; next sync will merge");
+        this._log.debug("Exception: " + Utils.exceptionStr(e));
+        this._log.trace("Stack:\n" + Utils.stackTrace(e));
+        this._snapshot.wipe();
       }
 
       ret.status = 0;
       ret.formatVersion = status.formatVersion;
       ret.maxVersion = status.maxVersion;
       ret.snapVersion = status.snapVersion;
       ret.snapEncryption = status.snapEncryption;
       ret.deltasEncryption = status.deltasEncryption;