Gigablue UHD 4K UE Freeze and 3 FBC Tuners missing

[relaxibus]

Hi Guys!!

I'm getting crazy with my Box:

Model: GigaBlue UHD 4K UE
OpenVIX: 5.3.039

Symptom: Box keeps freezing sometimes during recording and watching at the same time. A brand new 2TB Seagate Barracuda has been installed right last week to eliminate a doubt about a defect HDD. There only few plugins installed as you can see from the attached images. Sometimes it freezes also during recording only at night or during the epgrefresh scan during the day (no live watching).
Another problem is the fact that it recognizes 5 of 8 of the FBC Tuners. We are using DVB-C with Kabel Deutschland.

We can't update to OpenVIX 5.4 due the fact the plugin MovieBrowser will not work with the new Python 3. Unfortunately the developer has passed the way few years ago and no alternative is available (don't understand why, MovieBrowser is sooo cool)

Any idea? I'm thinking to swap over to a Vu+ system if this freezing issue can't be resolved.

Thanks!
-Relaxi