SharePoint List, Format template, set border not possible

Question

I would like to customize the style sheet in SharePoint List (the borders).

• All items
• Format current view
• Alternating Row Style
• Edit row style
• Odd rows
• Edit
• More Styles
• Borders

A few weeks before I was able to select the formatting without any problems, now this no longer works. When I hold the mouse over an option, the button does not change and I cannot select it.

But if I use the advanced JSON view, then I can paste the code there and the page is also displayed correctly.

What can be the cause?

Options (in german):

JSON code which is working:

{   
"$schema": "https://developer.microsoft.com/json-schemas/sp/v2/row-formatting.schema.json",   "additionalRowClass": {     
"operator": ":",     
"operands": [       
{         
"operator": "==",         
"operands": [           
{             
"operator": "%",             
"operands": [               
"@rowIndex",               
2             
]           
},           
0         
]       
},       
"sp-field-borderTopBottomRegular sp-field-borderTopBottomSolid sp-css-borderTopColor-neutralPrimary sp-css-borderBottomColor-neutralPrimary",       
{         
"operator": ":",         
"operands": [           
{             
"operator": "==",             
"operands": [               
{                 
"operator": "%",                 
"operands": [                   
"@rowIndex",                   
2                 
]               
},               
1             
]           
},           
"",           
""         
]       
}     
]   
} 
}

Answer 1

I have tested and reproduce the same issue as you. This may be an occasional issue.

Please go to Microsoft 365 admin center -> Health -> Service health -> Report the issue.

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Answer 2

I am experiencing this same thing, have been for a few weeks w/ multiple browsers, accounts & machines. Has there been any action on this?

Answer 3

I have the same issue with Microsoft Lists - impossible to change the border for rows via Format View | Alternating Rows styles