After giving his speech at the event, Putin approached French President Emmanuel Macron, giving him a firm handshake, briefly sitting down alongside Israeli President Reuven Rivlin before getting back up to shake Prince Charles's hand.
Take a look - the Prince walked down the line Thursday, greeting world leaders at the World Holocaust Forum in Jerusalem.
In response to the speculation online, Pence's press secretary Katie Waldman has denied the snub claim.
Pence and Prince Charles were among the keynote speakers at the Fifth World Holocaust Forum, which was held in Israel and this year coincided with the 75th anniversary of the liberation of Auschwitz.
A Buckingham Palace official denied this was a snub, telling the BBC the prince and Mr Pence had a "long and warm conversation" before the ceremony began. Note the difference in the videos below between Charles' interaction with Pence, and how he greeted Thunberg in Davos the day prior. Pence stood silently as the prince walked by, but appeared to pat him gently on the back.
Before his pained moment with the Prince of Wales, Pence was caught on a hot mic discussing what appeared to be the impeachment trial with Netanyahu, "We're contending", Pence told Netanyahu.