Dividend yield is incorrect on quite a few shares

For example

Ticker SMIF on the LSE, Dividend max reports a yield of 8.3%, Stock Events reports 6.96%, Trading212 reports 0.09%

Can someone explain this?

Exactly why it’s key to DYOR.

Some use flexible yields, some calculate static historic yields. Lots of places use different methodologies.

212’s rate is out by a factor of roughly 100.

Using three different information sources is doing my own research.

Just seems strange that T212 is this wrong. I always use multiple sources for info.