I can't sync things in Zotero for a number of items, some using Unicode, others not. An example error is:

```
[JavaScript Error: "File '_Janičarski_amblemi_nišani_na_Mračnoj_kapiji_Janissary_emblems_nişāns_on_the_Dark_Gate_of_Belgr.html' not found after processing download 3/G77J473G" {file: "chrome://zotero/content/xpcom/storage/storageLocal.js" line: 647}] otero.Sync.Storage.Local.processDownload<@chrome://zotero/content/xpcom/storage/storageLocal.js:647:4
tryCatcher@resource://gre/modules/commonjs/toolkit/loader.js -> resource://zotero/bluebird/util.js:16:16
module.exports/PromiseSpawn.prototype._promiseFulfilled@resource://gre/modules/commonjs/toolkit/loader.js -> resource://zotero/bluebird/generators.js:97:18
module.exports/Promise.prototype._settlePromise@resource://gre/modules/commonjs/toolkit/loader.js -> resource://zotero/bluebird/promise.js:574:17
module.exports/Promise.prototype._settlePromise0@resource://gre/modules/commonjs/toolkit/loader.js -> resource://zotero/bluebird/promise.js:614:5
module.exports/Promise.prototype._settlePromises@resource://gre/modules/commonjs/toolkit/loader.js -> resource://zotero/bluebird/promise.js:693:13
Async.prototype._drainQueue@resource://gre/modules/commonjs/toolkit/loader.js -> resource://zotero/bluebird/async.js:133:13
Async.prototype._drainQueues@resource://gre/modules/commonjs/toolkit/loader.js -> resource://zotero/bluebird/async.js:143:5
Async/this.drainQueues@resource://gre/modules/commonjs/toolkit/loader.js -> resource://zotero/bluebird/async.js:17:9
````

Would be happy to debug.