I've been struggling with this issue for several weeks and to no avail, so I am asking the community for help.
My main imaging setup consists of the ZWO ASI1600MM CCD coupled with their ZWO 8-position EFW.
I use KStars/Ekos/Indi along with Stellarmate as my software control and it truly is an amazing integration of quality modules needed for astrophotography.
Prior to my upgrading to the 8-position EFW, I had been using ZWO's 5-position miniEFW and my system worked flawlessly for just about 2 years.
Once I decided to incorporate NB filters with my LRGB filters, it made sense for me to upgrade my EFW to an 8-position version.
That's when the trouble began. I cannot get the 8-position ZWO EFW to show more than 5 filter slots. I've loaded the recommended filter wheel drivers from ZWO and those from ASCOM (Windows 10 environment).
When using Ekos, the filter wheel is recognized, but only 5-slots show up. I cannot add nor configure more slots. However, if I use software like APT Tools or SharpCap, the filter wheel ISrecognized and listed as an 8-position device.
I've tried installing KStars/Ekos/Indi on a dedicated Linux machine and the same problem exists.....8-position EFW shows only 5-slots.
I've attached two screen shots of the filter wheel equippage from Ekos.
Any help or advice would be greatly appreciated.
Thanks!

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