Not more to say. I encountered this bug for the first time few minutes ago: I was starting alchemy and henry just started to fly. Try to resolve if it is common 
UPDATE:
this is for sure a bug because I start flying all the times I try to alchemy in this station
That’s some damn good brew!
Lol true bro I just invented lsd for middle-age dudes
Yep had the same bug yesterday at the alchemy desk in the forest east of Uschitze
Yes In fact I hope this post will be read by developers
I think they know about it, but you have to post to the support section to report it properly. Happened to me to and I didn’t have a save lol
Ok i’ll Post there too. Anyway not a nice experience lol
Which Alchemy station are you using? It looks like it’s outside. The only ones I have found are in Rattay in a building and in Monastery
It Seems I’ve found a workaround the flying bug. Tested and it has worked, fingers crossed.
Not sure if this will work with some of you guys. Go to the alchemy table in the forest - near witch women.
use alchemy table - go flying. once you have reached the peak. esc and then fall. goto the map and do a marker to anywhere you then will die. Going back after a reload. to the bench and the bug is no longer there. Make sure you a saviour snaps, so you can save the game straight after using the workbench. no more bug so far.
hmm looks like some jester designer decided to give players redbull potion as easter egg.
This is near uzhitz you will find it with secondary quest assigned by father godwin or at a certain point of main quest
Don’t know if it will work for me anyway I suppose i’ll just go in another alchemy workstation to craft potions
If that fails there is alchemy crafting station in the city behind the alchemy shop.
Hahahahahaha what kind of potion is dhiz!?
That journey made me high… literaly, to me it seems more like a fancy way for developers to fk up with the player, once happened it cannot be reproduced.
In fact i can’t understand what potion I have to craft. I’ m gone to all the erborist indicated on the map, but all of them tell me the same thing. I crafted two potion that could be right but it didn’t worked. What do I have to do to get the right one??
confirm 
same funny bug on Xbox
I made a video from it
Same here. But this does only alchemy station near Uzitz, all other stations are fine.
yeap me too in ushitz by the witch house fly in the air and when i leave the tabel drop too the ground and dead on x box
that is the signal that you should not mess around with alchemy man.
It happened to me as well from the start of the game. I did not understand the save mechanic very well and I lost like 2hours of gameplay because of this. then I slept on the been close to the desk, tried again and failed. I’ve never tried alchemy since then.
