upload problems

[Little-Mage]

Describe the bug
clicking Upload kifus in existing Problem Collection doesn't work.

To Reproduce
Steps to reproduce the behavior:

1. created problem collection
2. Click Upload Problems
3. kifs are in zip
4. the kifs get uploaded but after clicking Upload kifus in existing Problem Collection nothing happens

Expected behavior
tsume kifs get added to problem collection.

Screenshots

Desktop (please complete the following information):

• OS: windows 11
• Browser Edge
• Version 115.0.1901.203 (Official build) (64-bit)

Additional context
wakuwaku-land.zip