Hello.
I encountered a very weird bug (?) in regard to creating flow associated with Sharepoint O365 list. I have created a mentioned flow for a list and everything worked fine, until I wanted to update the flow. Since then, it seems like flow engine itself cannot read dynamic data from the list. I initially thought it's because I update the item multiple times during the flow or reaching the maximal allowed level of nesting action, however it seems to be the case even in simpliest flow with 2 actions : trigger on when item is created -> send mail to, where the subject of a mail is title of the item created on the list. See below.

Please forgive me the quality of this image, I just wanted to indicate, that flow works after it is created, but then after a few runs, when it is edited the data from the list cannot be accessed, where you can clearly see that the created item does have a Title.
Best regards.