There might be something wrong with your Krita install. It works fine for me on Windows (Krita 5.2.11).
Basic information for my test: If exporting to jpg at setting “100% quality” the result is nearly the same like with PNG.
There is no difference in wrapping a jpg or a png especially no “offset” like in your jpg wrap.
I used “file” → “Export” to get the png and jpg.
Original kra file 512 x 512 px:
Wrapped:
JPG exported from Krita → opened in Krita:
Wrapped:
PNG exported from Krita → opened in Krita:
Wrapped:
Maybe you can upload one of your KRA files for us to test.
Or reset your Krita to its default state and try again (it happens that its configuration gets messed up).





