NG0956: The configured tracking expression (track by identity) caused re-creation of the...

Issue with Angular mat-option tracking and selection


I'm having a problem with my Angular Material dropdown implementation. When I use the tracking feature in my @for loop, the dropdown displays correctly, but selection functionality breaks.

Here's my current code:

@for(item of _optionData; track item){
<mat-option [value]="item.value?.toString()">
{{item.text}}
</mat-option>
}


I have a condition that works when I mention track: trackbiid, but when I select something, it does not work.

How can I fix this issue so that both tracking and selection work properly? Is there something specific about how tracking interacts with the [value] binding that I'm missing?

how to fix the issues

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