Older X-T10 or a newer X-T100? Help decide please

X-T100 has some weird behavior. When data is being written to the SD card, many functionalities are crippled. Don't know why since it looks stupid.

When camera is writing to SD card:
- It's not possible to change the focusing point (meaning you are stuck with the same focusing point until buffer is emptied. You can shoot photos, but then you can't change the focusing point even longer)
- If you were using viewfinder, you can't review photos on the LCS screen (playback is stuck to viewfinder until entire buffer is written to the SD card. Note - it works in the viewfinder, camera is just crippled to switch the view to LCD)
- It's not possible to use MF assist magnifier view in viewfinder (on LCD it works).
- Q (quick menu) doesn't open
- white balance can't be set
- menu can't be open
- self timer can't be selected
- shooting mode can't be changed

This list is IMO ridiculous. Even more because some other even advanced stuff does work. Like changing display mode including showing live histogram, changing ISO and exposure compensation, eye sensor switch from LCD to viewfinder, touchscreen commands to change AF modes etc. I really hope these are bugs that will be resolved with FW upgrades.

Metering is also very funny sometimes - I don't get it. There are other bugs - like Aperture priority mode sometimes doesn't allow setting aperture above F/2 (since camera determines the image will be overexposed, however, in reality it's not).

Paired with 35 F/1.4 (yes, I know, one of the slowest AF lenses on a slow body) one needs to be creative and patient using X-T100 to shoot kids or events. However, photos that are nailed are great.

I'm trying hard to love my X-T100. And I often do. But sometimes I wish I could upgrade to another Fuji body with Bayer array...