Issues:
• In External Tools, Ticking or unticking JDK / NDK / Gradle results in NullRefference errors
• In External Tools, Ticking or unticking SDK for the first time in editor's lifespan results in Scanning for devices popup

• (fixed in upcoming releases) having SDK from HUB components present when opening the project results in Frozen “Loading Assets” popup. Editor can still be interacted with, but the pop-up cannot be closed and the editor cannot be terminated without force-quitting
• (fixed in upcoming releases) attaching an unauthorized device results in 6 debug messages in a row, regarding the unauthorized device

Reproduced in: 2021.2.0a13, 2021.2.0a15
Not reproduced in: 2019.4.25f1, 2020.3.5f1, 2021.1.4f1, 2021.2.0a12