Dashboard performance of the portfolio

I connected my account to Sagemaster in April and linked it to various strategies. I can see the current value of my holdings in the dashboard. I can also display different time periods such as 24 hours, 1 week, 1 month and 1 year. If I display the development since my account was linked until today, which is about 6 months, I simply see the entire portfolio but not the actual development. It says 0%. In my opinion, this is a mistake. So I can't see how my portfolio has really developed. My trading account is from Bitget. I also have the problem that the performance is not displayed in % at all, but only as a line graph. So I have no way of seeing the performance of my portfolio in % at a glance either way.