App fail to update Modlist properly in Custom Modpack

[Yijare]

What Operating System

Windows 10

Debug Code

Describe the bug

When updating a mod through the Modspage, a new Entry with the new version is created, not removing the old one

Steps to reproduce

Update a Mod.
modifications.json will not be updated properly

Expected behaviour

modifications.json will be updated properly

Screenshots

Additional information

No response

[ftb-helper]

Hay, thanks for the issue! Unfortunately it looks like you've not provided your app logs... We require this as it helps us find your issue as quickly as possible.

Please do the following

Upload Logs using the app

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Using the FTB Debug tool

Only use this method if asked to or if your app wont open fully/the above method doesn't work, you can use the FTB Debug tool to generate a code for you.

Please use the link below to download and run the FTB Debug tool. This is a tool built by our App Developers and will provide you a code that you need to attach to this issue. Please either edit your original issue or add a comment with this code. If you need more help running this tool, you can follow our guide on how to use the FTB Debug tool.

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[WyFryMU]

@Yijare please do as the bot says. Otherwise zip up your logs folder from the .ftba folder and send them here.

[Yijare]

dbg:Ndp3F57senM