Any resolution? We are experiencing the same thing where the sync gets to about 75%, takes forever, and dies. The data gets back to the server but sync crashes in Collector before the confirmation so it thinks it needs to sync again. After stripping the app and data down to nothing its still happening an the only way we are able to work around the problem is to enable Delete, which we don't want to do. We don't want users to accidentally delete features, just update attributes. Any ideas? Using 10.6 and the latest Collector (iOS).
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