Is this with Axe-Edit?
I found issues retrieving patches, and also patches defaulting to te Bassman in Axe-Edit (though in the main unit it was correct) since 8.0 (so not restricted to 8.01).
I have had no issues whatsoever (in 30 hours of playing tweeking) with 8.01 when used in isolation (which is mostly - I hardly ever use Axe-Edit appart from FW updates and occasionally uploading/downloading something from Axe-Exchange - which is where I had the issues).
Incidentally, I did have freezes and crashes after a FW update some while ago (cant remember if it was the 2 or my old Standard). It happened to me, and me only - and was tied down to the univibe setting in a phaser. whenever I had that in a patch it would randomly freeze (sometimes when booting up, sometimes while playing). G66 had iot back, they changed my unit but I still had the issue. No-one else seemed to have it (well not that Im aware of), but Fractal were also informed, and patches were sent (sopme of which reproduced the effect on other units). Ultimately it was fixed (I presume) as it never happened once that FW was updated.
It does show though, that there are so many combinations of settings available int he AFX, that an issue like this CAN happen, and appear to happen to only one or two users while for everyone else its fine. Its just that they havent managed to combine things in such a way as to cause the issue.
I suggest looking at the preset your using when you get a freeze, as it could well be an issued caused by a corrupt preset, OR something in a particular block not playing well with something else in that preset.