While I'm doing the inline tag edit by clicking on the "Edit tags" (privilege earned when reaching 10,000 reputation) on a post, there is a loader image which is briefly visible. However, the loader image is very big and not looking good.
I was able to reproduce this issue on the following browsers:
|Operating System||Windows 10 Pro|
|Mozilla Firefox||87.0 (64-bit)|
|Google Chrome||89.0.4389.90 (Official Build) (64-bit)|
GIF for the same: