Is this situation still occurring?
If your Ticket was created successfully, when you go into your Account details and check for Open tickets the new one will be listed in blue. If nothing is there, then it failed during submission.
Hot tip to mitigate frustration:
I always copy my ticket contents to the clipboard memory right before posting, just in case. I get ticket failures on all sorts of platforms, not just on Zendesk, so it’s better to be safe than sorry if you’ve spent a while describing your current plight in Krystara!