Uncomfortable questions about 3.6

Well, it was my fault to ask for a future version and to call these 3.6.1 simple, so you had to delete it.

But please answer our questions.
We can spare ourselves than senseless tests.
Especially if there is already knowledge about faults :

Can old *.work files be copied and further consulted into the preview list?
(It seems to be a problem with 1D Mark II files)

Is there knowledge about faults for taken pictures under artificial light at the processing files? (Again it is a problem with Mark II files, the previews don't look like the ready pictures)