"Internal Server error" when importing github sandbox after renaming directory

[looeee]

🐛 bug report

Description of the problem

I'm trying to import this github URL:
https://github.com/looeee/discoverthree.com-examples/tree/master/1-first-steps/ch-2-lights-color-action

Which is an exact copy of this one:
https://github.com/looeee/discoverthree.com-examples/tree/master/section-1/ch-2-lights-color-action

However, this sandbox doesn't work (first URL), and gives an unhelpful "Internal Server Error" message:
https://codesandbox.io/s/github/looeee/discoverthree.com-examples/tree/master/1-first-steps/ch-2-lights-color-action

While this one does work (second, original URL)
https://codesandbox.io/s/github/looeee/discoverthree.com-examples/tree/master/section-1/ch-2-lights-color-action

How has this issue affected you? What are you trying to accomplish?

I'm trying to organise the directories on my repo better.

[looeee]

UPDATE: It seems some of the duplicated folders work, while others don't.

I duplicated this folder: https://github.com/looeee/discoverthree.com-examples/tree/master/section-1
To create this one: https://github.com/looeee/discoverthree.com-examples/tree/master/1-first-steps

All folders in "section-1" were previously importing correctly, and still import correctly now.

However, in the "1-first-steps" folder, these work:

• https://github.com/looeee/discoverthree.com-examples/tree/master/1-first-steps/ch-1-getting-started
• https://github.com/looeee/discoverthree.com-examples/tree/master/1-first-steps/ch-2-code-organisation
• https://github.com/looeee/discoverthree.com-examples/tree/master/1-first-steps/ch-4-textures-intro
• https://github.com/looeee/discoverthree.com-examples/tree/master/1-first-steps/ch-5a-split-init
• https://github.com/looeee/discoverthree.com-examples/tree/master/1-first-steps/ch-6-shapes-transformations
• https://github.com/looeee/discoverthree.com-examples/tree/master/1-first-steps/ch-7-load-models

While these don't work:

• https://github.com/looeee/discoverthree.com-examples/tree/master/1-first-steps/ch-2-lights-color-action
• https://github.com/looeee/discoverthree.com-examples/tree/master/1-first-steps/ch-3-resize
• https://github.com/looeee/discoverthree.com-examples/tree/master/1-first-steps/ch-5-camera-controls

[looeee]

OK, I renamed the folders another time and it seems to be working now.

I'm not sure if there was some minor type or if it was another problem, but in any case the main issue here was the the error message was not helpful, and that's already being tracked in #1327 so I'll close this.