Powershell: windows and font grow larger and flash

[KagamigawaMeguri]

Steps to reproduce

input any code，even ENTER

Expected behavior

while I input any code，the window and font will suddenly grow larger and flash, like following img

Environment data

Name                           Value
----                           -----
PSVersion                      7.0.0
PSEdition                      Core
GitCommitId                    7.0.0
OS                             Microsoft Windows 10.0.18363
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

[mklement0]

Other than the column of times to the right being missing from the second screen shot, there is no obvious difference between the two. Can you describe your problem and under what conditions it occurs in more detail? Are you using a regular console window or a different terminal emulator?

[KagamigawaMeguri]

Other than the column of times to the right being missing from the second screen shot, there is no obvious difference between the two. Can you describe your problem and under what conditions it occurs in more detail? Are you using a regular console window or a different terminal emulator?

thanks for your reply.
i recorded a video, like this:
https://drive.google.com/open?id=1emfWBLjBTKAWhqIHoQIrc5GzLD62qfKY
thanks again.

Google Drive

2020-03-23 20-10-39.mp4

[mklement0]

That looks strange indeed. Does it still happen if you remove PSReadLine first
(Remove-Module PSReadLine)? Does your prompt function contain unusual commands ($function:prompt)?

[KagamigawaMeguri]

That looks strange indeed. Does it still happen if you remove PSReadLine first
(Remove-Module PSReadLine)? Does your prompt function contain unusual commands ($function:prompt)?

!!!thanks!
when i try Remove-Module PSReadLine, It works, then i realized that the font is wrong.
i change the font, everything is fine!.
Thanks again!!!!!!!!!!