unknown data type?

[kolla]

Check with md5sum or similar that the files have not been corrupted during the transfer?

[kolla]

Check with md5sum or similar that the files have not been corrupted during the transfer?

So, have you checked with md5sum (or similar) that the files are indeed the same on source and target? If they are indeed the exact same files, then your target system has a problem. If they are _not_ the exact same files, then your method of transfer is broken. Then you can start debugging whether it is uploading to, or downloading from Dropbox which corrupts your files.

[kolla]

files show up with no attributes?

What do you mean by "attributes"? What are you looking at when you see "no attributes"?

[kolla]

Do you have a third computer that can confirm that the files are uncorrupted on Dropbox?

[kolla]

And you are saying lha files are also corrupted on Dropbox?
Is it always the files uploaded from one computer that gets corrupted, or is it from any of your computers?

I personally have not experienced any file corruption with Dropbox, but I don't really use it that much, as I have other cloud storage providers I use.

[kolla]

So you are saying uploading from your Amiga causes file corruption. I am guessing you are using the Dropbox handler, and so I guess that is a support issue for the author of the handler