Order Notes Not Coming Through When Paying With Paypal

During the checkout I have it so parents can leave a note when they checkout. However, I've had at least 1 order, that I know of so far, that a parent put an important note about the order, then paid with PayPal. That note didn't make it into the order...and I checked on PayPal and there wasn't anything in there containing the note as well. Is this a bug or something that will happen when paying with PayPal? Thanks!

White PayPal option?

I just tested PayPal Standard Business and PayPal in PayPal Checkout / Advanced Checkout and the note added at checkout is on both orders I placed. 

Standard Business. Hmm...she said at checkout she entered a note explaining an update for the team photos an error she found. I didn't see a note and I had reached out about the issue that I saw as well...and she said she had put a note in her order. The only thing I could think of was that it was a paypal order as it was going outside the system?

Maybe she added it while paying on the PayPal site. That would not show up on an order in Sytist. 

I did check that and nothing was there. Ok I'll keep my eye open if it happens again.