Bug in Event Viewer - Filter Current Log by Event Source

I found a bug trying to view the Event Log on both my v 1803 PCs for the Option Filter Current Log by Event Source.

Nothing appears in the drop down list unless the screen scaling is set to 100%. This strange behaviour is experienced by many users based on a Google search. It seems Microsoft's infamous software QA strikes again. I guess we will have to wait for a fix.

Is there a better free Event Viewer to use than that provided in Windows?

See the error below - nothing appears in the drop down box unless you use 100% scaling:
Attachment 218091

Steve C said:

I found a bug trying to view the Event Log on both my v 1803 PCs for the Option Filter Current Log by Event Source.
Nothing appears in the drop down list unless the screen scaling is set to 100%. This strange behaviour is experienced by many users based on a Google search...

FYI, this bug also exists in 1809.
It was in 1803 from the beginning, build 17134.1.
It isn't there in 1709, even in the latest build 16299.847 (Dec 2018).

(tested on my System Two below).

I just tried filtering reports in v1903 and I'm amazed this error is still present