pasted .jpg appears as icon

Copper Contributor
I made a screenshot on my iPad 4 running ios 10.3.3which was saved as a png. Then in Google Photos I edited it so it would be saved as jpg. Then I shared the screenshot to my Onedrive. In my Android os 7.0 phone, I opened Android Onenote and clicked the attach button then selected the jpg, then pressed Done. However only an icon appeared, and I don't understand why. Is this normal or not?
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