Hi @pdrampis,
I have made a test on my side and don't have the issue that you mentioned. The screenshot of my flow as below:
Please take a try to clear cache of your browser and try your flow again to check if the issue is solved.
In addition, you could also access the properties of the item using the following formula:
triggerBody()?['PropertyName']
I assume that you want to reference the Created property and Modified property of the item, you could use the following formula:
Access Created property:
triggerBody()?['Created']
Access Modified property:
triggerBody()?['Modified']
I have made a test on my side and please take a try with the following workaround:
Within Condition box, click "Edit in advanced mode", type the following formula:
@equals(triggerBody()?['Created'], triggerBody()?['Modified'])
The flow works successfully as below:
More details about using expression in flow actions, please check the following article:
Use expression in flow actions
Best regards,
Kris