LR mobile iPad won’t export to Dropbox

[stephen b]

Hello, 

Im using the most recent version of LR (5.3.1) and when I choose to "share" my images the option for Dropbox is greyed out & not selectable. I can get to Dropbox with three different "share" workflows: 

"Share To" "Export to Files" or "Export As..." 

All three options yield the same result. 
This seems like a Dropbox issue not LR but I wanted to know if anyone else has experienced this. I'm using an iPad Pro, and my Dropbox is also updated. This has not always been a problem so it's hard for be to believe it's user error but I'm here for ideas!

{Moved from Lightroom Cloud to Lightroom Mobile Forum by Moderator} 

[selondon]

Nor can I. Actually, I cannot export from the Apple iOS Photos app to Dropbox either.

[selondon · Accepted solution]

Just been playing around with this... if you go into the Files App / Dropbox in your iPad first, it must do something like authenticate.

Returning to Lr or Apple Photos after this and then exporting shows me Dropbox and the export is successful 

[stephen b]

Can you explain what you did? I looked through settings on both the iPad & Dropbox and couldn't find any such option.

[selondon]

Accessed the iOS Files App above - then accessed Dropbox from there.

Afterwards I went into LrM again and exported without issue.