Select subject not working in Lightroom mobile

From the first time I purchased lightroom the select subject and sky never worked it just crashed and reopened the app. Then for the last few months it has been working fine and it's honestly the best feature for what I use lightroom for. Now as of this morning I'm getting and error saying it can't detect the subject. On photos it has worked for before and every photo. I have cleared the cache, uninstall reinstall and still nothing. Not happy at all. Hope this gets rectified asap or a fix is provided. 

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