Exporting from LR Mobile to Instagram via selecting or exporting feature.

I’ve tried the select option and exporting option and it doesn’t work, exporting to instagrsm anymore   I’m on ver 156 for Instagram. You used to be able to export the image with watermark by using the export feature now when you try to you have to choose a group? And even if you choose a person or group, it doesn't work.  Has something changed? 

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