Mac OS Catalina completely break the resource manager an make downloading plugins impossible, this also breaks the language selection panel.

System Info
Model Name: MacBook Pro
Model Identifier: MacBookPro12,1
Processor Name: Dual-Core Intel Core i5
Processor Speed: 2.7 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Hyper-Threading Technology: Enabled
Memory: 16 GB
Boot ROM Version: 188.0.0.0.0
SMC Version (system): 2.28f7
Serial Number (system): C02T73HFFVH4
Hardware UUID: 65CC7B08-D9C8-56F0-B077-7C5F9715C9E7
Application information
Version: 3.6.2.548020600
Obtained from: Identified Developer
Last Modified: 2/8/21, 7:17 AM
Signed by: Developer ID Application: MuseScore (6EPAF2X3PR), Developer ID Certification Authority, Apple Root CA
Location: /Applications/MuseScore 3.app
Kind: 64-bit

I'm using Mac OS Catalina 15.2.02