Cockpit graphic problem after 1.5.8

With the last update (1.5.8) all the indicators (expecially RPM indicators) of the F-5 appears to be at a lower resolution than the rest of the cockpit, (watch the screenshot attached), before it wasn't like that.

I point out that all graphic setting are to max.

I tried to reduce some graphic settings becuse i thought it was a downscaling due to the high settings but the problems remain.

Am I the only one? Can anyone help me?

I tried with all my other modules but they are fine, only the Tiger has this problem.

It looks like the mipmaps are missing or something, as soon as you zoom out, the gauges become heavily pixelated.

Problem still present in 2.5.