I hold AMC and have received APE distribution - but Sharesight does not show ?

Hi, I have received APE as a result of AMC holdings. These are showing in my IBKR account, but Sharesight is only showing Dividend distribution. How can I load to Sharesight, and what cost base should be used, is it the open price on day first traded?

I have now got a further complication in that Sharesight is showing APE as delisted, but has not updated the balance of my AMC holdings as expected. I had 50 of each on the 24th of August. As I understand it, Sharesight should be reporting a total of 10 AMC + 5/7.5 (0.66667) as per SEC agreed compensation giving a total of 10.66667 AMC shares in total. Instead Sharesight is reporting 6.3333 AMC and 50 APE (with the notation that they have been delisted from the NYSE. My broker, IBKR is reporting 10 AMC shares, and appears to have sold the fractional 0.66667 on market. Should I manually override the Sharesight unconfirmed transactions? Thanks in advance?