What's the error message you get when you try to upload?
If you don't want to lose your changes, just leave Scratch open and put the computer on Standby or Hibernate when you're done using it - I do it all the time with my laptop.
To cheer you up, your next post will get you 1000 posts
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That certainly is strange! But I'm glad you've figured it out - meaning this topic is no longer relevant. I'll close it for you, and if the issue arises again, feel free to report the topic to get it reopened
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