Image too large

[Sarah_Keown]

Hi, is there a difference in the size of images vs. thumbnail?

I recently switched some image columns to thumbnail and the images uploaded last week have not been displaying and I am getting this content in the excel sheet?

Its hard for me to know whether this happened before or after I switched the file type? I’m hoping the user can re-upload and it should appear as normal but just a bit concerned of this reoccurring