Minimig Screen Modes Strange Behaviour

[ingloriond]

Good afternoon, I use the Minimig core with a CRT VGA 31Khz monitor, my MiSTer's configuration is as follows(Mister.ini):

[minimig]
forced_scandoubler=1
vga_scaler=0
vscale_mode=0

I don't use vga_scaler because otherwise the scrolls sucks. However I have noticed that in some graphic modes the core throws me the signal at 15 khz, when it shouldn't because the scandoubler is forced. In other Fpga's it doesn't happen to me so it's either a bug in my ini or something related to the core.
I need a helping hand
If it was something core related I guess I would have to make an issue.

Demo video with the Apano sin game

https://sendvid.com/dfxhn0x9

Thanks for everything

[ingloriond]

Well, Sorgelig says... "currently interlace mode isn't compatible with scandoubler" i hope can be done in a near future