Inconsistant task data between web app and Mac app

this is super frustrating and almost makes it unusable I am seeing issues with inconsistent data between web app and mac. I cant deal with this, I will end up missing things. I need to be able to trust that when I add a task I will see the task. Also on the mac app, I had to add a task 3 times before it actually showed up. I am on good fibre internet so that should not be the issue.