Custom Chart Templates

I will be grateful if someone can help me with an issue I am facing with charts in Trading212. Once I make a custom chart template and save it as my default template, I am able to use it as long as I am logged in. However if I logout and relogin, My chart template disappears and I have to make it again.
Has anyone else faced this issue? How can I resolve it, so that I dont have to create a chart template every time I login
Thanks