In T430577#12079577, @Samwilson wrote:

... As far as the cache bug goes, I've not been able to replicate it. The cache lifetime is 5 minutes, and the cached file is supposed to be deleted when you upload to Commons. Are you seeing this happen only when less than 5 minutes have elapsed?

I also created a possibly related Request to improve the description on Talk page of Commons:SVG Translate tool:

2. It's also not entirely clear whether it's possible to switch between languages ​​to create multiple translations at once, or whether each individual translation needs to be uploaded to Commons (since switching languages ​​often results in a message saying there are unsaved translations (even if these are translations loaded from a file and haven't been edited yet - this is inconsistent behavior?)).

In T430577#12068721, @Samwilson wrote:

Which file did this happen with? Did you catch it before uploading a new version?