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It was discussed in the thread literally one below you: forums.garmin.com/.../forum-reply---an-error-occurred-please-try-again-or-contact-your-administrator---bug-in-forum-software

flocsy🤠 said:

It was discussed in the thread literally one below you: forums.garmin.com/.../forum-reply---an-error-occurred-please-try-again-or-contact-your-administrator---bug-in-forum-software

You'll note that the OP's title:

- seems to be a direct quote of the error message they're seeing (not a paraphrase)

- is completely different than the error message discussed in that thread

It's possible that both are caused by the same problem, but it's also possible that OP experienced a completely different problem. I haven't seen the exact error message in OP's title myself.

I have now uploaded beta test versions enough times to now say that I see this red warning message every time I upload a new beta version.

Unless there is a fault that coincides when I upload, then this message is just wrong and sounds like GARMI IQ keep havingunsolvable problems with their server, which they continue to be sorry about.

There is no harm in just adding a short message to say please wait while we process your upload or grey out the Download button until the file is available.

what were the illegal characters?  I am getting the same problem or similar.

Start to edit the title, description of a beta app. Remove the non ASCII characters, then save. If it works then add the non ASCII characters one by one and save after each one. Some of them might work, some will fail.

Garmin also randomly (and unannounced) changes what is allowed...

After you find which characters work, please update so I can put it here: 

https://forums.garmin.com/developer/connect-iq/f/connect-iq-web-store/366871/which-emojis-non-ascii-unicode-characters-that-can-can-t-be-used-and-where