Filament Block Base built in supports are fragile

[ressu]

The built in supports in the Filament Block base have a very thin portion at the bottom. Even when the bed adhesion holds up, it's very likely that the thin portion flexes enough for the print to fail:

By adding a small support to the very thinnest part makes the print much more reliable (from 16% success rate to 100% success rate)

While this is a quick fix for the print, there is another issue with the same built in support where the bottom 2 layers float in air before connecting with the colum that reaches up from the bottom.

It doesn't seem that these 2 loose layers reduce reliability noticeably, but sometimes there are artifacts in the print because the supports move around and stick to the parts.

[Garethgb]

I'm literally just reprinting more of these as 4 failed exactly as described