TC often have this phenomenon of icon disappearance

[ruizrzr1]

Why does TC often have this phenomenon of icon disappearance? https://ibb.co/nBHhW6y
https://ibb.co/x3CBLBn Is there any solution?

[ghisler(Author)]

Is there a hidden file desktop.ini in that folder "Bar"? If yes, what does it contain?

[ruizrzr1]

Is there a hidden file desktop.ini in that folder "Bar"? If yes, what does it contain?

There is desktop.Ini and bar.ico in the bar folder
The content in Desktop.ini is

[.ShellClassInfo]
IconFile=BAR. ico
IconIndex=0
IconResource=BAR. ico,0

In most cases, there is no problem with the display, but sometimes it can be displayed only after the TC is restarted

[petermad]

2ruizrzr1

Is it a typo - or is there really a space between BAR. and ico?

Also the folder Bar has to be marked as system and or read-only - if not, the icon from the desktop.ini file will not be used.

[ruizrzr1]

2ruizrzr1

Is it a typo - or is there really a space between BAR. and ico?

Also the folder Bar has to be marked as system and or read-only - if not, the icon from the desktop.ini file will not be used.

Attribute is +RA,I think you are thinking in the wrong direction. In fact, restart can solve the problem, Sometimes TC make some strange mistakes, such as taking a photo as a thumbnail of a folder. Of course, this does not often happen

[ghisler(Author)]

Try changing this to a full path, otherwise the ico file may not always be found, and also remove the extra space:
[.ShellClassInfo]
IconFile=c:\path_to_file\BAR.ico
IconIndex=0
IconResource=c:\path_to_file\BAR.ico,0