I am still having problems with the TabControl in 22.214.171.124 (Also note that this version is not included in the required Product version dropdown to log a bug, so I had to choose 41). The example linked to from the now closed bug report 'Tab control display problem' using ContentTemplate does not work for me in Blazor Preview 8 with Syncfusion 126.96.36.199.
Using the ContentTemplate example in your docs, nothing is displayed. Please advise, thanks. Also please note that I actually want to use other Blazor Components within the ContentTemplate.