用旧版解决了这个问题。
Android Studio 4.1 RC 1
Build #AI-201.8743.12.41.6719854, built on July 30, 2020
Runtime version: 1.8.0_242-release-1644-b01 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0
GC: ParNew, ConcurrentMarkSweep
Memory: 1237M
Cores: 6
Registry: ide.new.welcome.screen.force=true, external.system.auto.import.disabled=true