And even after you get past the manufacturing, titanium also seems to have some weird corner cases. I learned recently about metal induced embrittlement of titanium [0]. The Wikipedia article mentioned cadmium embrittlement of titanium, but is also possible with copper and silver. So if you have a silver plated washer pressed in to titanium it can cause issues.

[0] https://en.wikipedia.org/wiki/Metal-induced_embrittlement

This year I learned titanium shavings are at least as dangerous as magnesium shavings.