Known problems with Fuji X-T3 files ?

Hi,

I'm currently considering the purchase of a Fuji X-T3. So, I'm testing against C1 v12 some sample RAF files created by this camera. When importing these files in my catalog, I systematically got a "proxy creation failed" error. These files are coming from different sources. Each time, C1 eventually crashed and my system became extremely slow (Windows 10 Pro 1903). After 3 attempts, I found myself with all files in my catalog but the previews had a very low definition (very pixelated). I restarted Windows and C1 and then the previews were correctly displayed.

The second problem is that some of these photos were shot at high ISO settings (between 5000 and 12800) and the noise reduction in C1 for these files is far from being satisfactory when compared with Lightroom or Silkypix Developer Studio.

A few high ISO sample files are available here :

https://www.dropbox.com/sh/etmq8vp4effsdg9/AADL0UIlYRhJdEuYbm39Ax--a?dl=0
(sorry for the link but it seems that I may not use the [url] BBCode - it's new)

These files were also affected by the import problem described above.

I'm wondering whether these problems are X-T3 specific since I have no problems with X-Trans files coming from a X-Pro1 (although they are much smaller of course).

Thanks in advance for any information.