Syncing resource packs doesn't work

[Bombastiko]

Please confirm the following.

• I checked the existing issues for duplicate problems
• I have tried resolving the issue using the support portal
• I have ensured my Modrinth App installation is up to date

What version of the Modrinth App are you using?

0.20.0

What operating systems are you seeing the problem on?

Windows

Describe the bug

When I try to activate the new "Sync resource packs" option, I'm prompted to choose the source for the packs. (on just a sidenote, the interface for choosing the source is very flashy and scrolling doesn't work as the list always goes back to the top, it's like reloading every half a second)
When I choose a source I almost immediately receive the following error:

An error occurred
Serialization error (JSON): trailing characters at line 10 column 1

Steps to reproduce

1. Go to settings
2. Synced settings
3. Activate "Sync resource packs"
4. Choose a pack
5. Click on "Sync"

Expected behavior

I expect that the resource packs from my chosen source will be synced to other modpacks.

Additional context

No response

[IMB11]

Hi, can you list the resource packs you are using?

[Bombastiko]

Im not using all, but in the source modpack there are the following rp's:

• Better Lanterns
• Clear wither hearts
• Cobweb Outline
• Connected Hotbar (Dark)
• Dungeons Hotbar
• Eating animation
• Enchantment Glows
• FA: Emissive
• FA: Objects
• FA: Player Extension
• FA: Quivers
• FA: Spiders
• Glowing Emissive Ores
• Mace but 3D
• qrafty's Capitalized Font
• rainbow's foliage: polytone
• Redstone Tweaks
• Round Up
• SPBR
• Visible Shield Cooldown

[IMB11]

Any resource packs in modpacks wont be included, what resource packs have you added in the additional content list?