Importing exported project fails at 70–85% (400 / 500 errors)

[SashaRX]

Hi,

I’m trying to re-import a previously exported PlayCanvas project.

Project details:

• Archive size: 977 MB (zip)
• Exported via standard PlayCanvas export
• Upload starts normally
• Import progresses to ~70–85%
• Then import stops and fails

Console errors:

Failed to load resource: the server responded with a status of 400 (Bad Request)
Failed to load resource: net::ERR_CONNECTION_RESET
POST https://playcanvas.com/api/upload/complete-upload 500 (Internal Server Error)

The failing file in console:
artefakt_old_2026_1_18-14_33_26.zip

Additional info:

• There is enough storage available on the account (10 GB limit not exceeded)
  

• Internet connection is stable

• The error repeats multiple times before final failure

• The upload seems to complete partially before the 500 error on /complete-upload

Questions:

1. Is there a size limit per single project import?
2. Could this be a timeout during server-side unpacking?
3. Is there a way to split the project or bypass the web importer?
4. Is there a known issue with large zip re-import?

Any guidance would be appreciated.

[mvaligursky]

@KPal @will

[yaustar]

To check, is this an archive of a project or an exported build? If you unzipped it, what files do you see?

[SashaRX]

This is the project archive

[yaustar]

Yeah that looks like an archive zip

[yak32]

hello, let me try to help you with this - can I have the file to test it?

[yak32]

thanks, I successfully uploaded it - it maybe some issues on the provider side. I can easily transfer ownership of the uploaded project to your account, just give me the username please.

[SashaRX]

SashaRX

[yak32]

Request sent

[SashaRX]

Big thanks!!!