Hi,
I've just installer the latest beta, and the first thing I noticed is the new Tool Path View rendering system produce a kind of ugly picture compared to the 1.2115 version.
With multi-sampled value set 0, it is barely unreadable, and increasing the multi-sampled value just add a nasty blur. It looks like the framebuffer size is not set correctly, or something like that
Here is a screenshot from the previous 1.2115 version
Here the new version with MSample=0
And here, the new version with MSample=4