WRT1200AC David502 Build r10307 Unable to update and switch Active Partition

SNAPSHOT r10307-629e6538a1 - Kernel 4.19.53 - I am unable to update my WRT1200ac, nor am I able to use advanced reboot to switch the non-active partition.
The non-active partition indicates that it is "OpenWrt (Linux 4.19.115)" though I don't recall if it is a standard OpenWRT install or one of David502's builds. I know it is far from the most up to date.
I have run opkg update and I removed and reinstalled the LUCI-advanced-reboot app, but I had no luck in actually booting to the non-active partition and updating the build with "openwrt-mvebu-cortexa9-linksys_wrt1200ac-squashfs-sysupgrade.bin" just causes the router to reboot and then take me back to the same active partition (same version and settings applied). I am pretty proficient with all of this, but I am not an expert as much as I would like to be.

My question is what can I do to allow this box to update. I can SSH into and run the commands via CLI but I am uncertain of the parameters I would need to give it so the box will format the non-active partition and then do a clean install of the newest build that David502 released at the end of May. One thing to note is an error I was getting when attempting to update the pkg "Luci-Advanced-Reboot" which indicated a dependency was missing - luci-app-compat which i was unable to install either. Any help would be much appreciated. Thanks

Failed to execute call dispatcher target for entry '/admin/system/advanced_reboot/alternative_reboot'.
The called action terminated with an exception:
/usr/lib/lua/luci/controller/advanced_reboot.lua:119: attempt to concatenate global 'errorMessage' (a nil value)
stack traceback:
/usr/lib/lua/luci/controller/advanced_reboot.lua:119: in function </usr/lib/lua/luci/controller/advanced_reboot.lua:98>
(tail call): ?

This is the error I get when I click on the other partition

previous fight

To switch partitions just go to this page and scroll about halfway down, there are a couple simple commands to switch and reboot. First use the command to determine the current partition then switch it to the other one and reboot:
https://openwrt.org/toh/linksys/linksys_wrt1200ac

Edit: removed recommendation.

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I don't even have a serial cable for my WRT32X and always use Sysupgrade from LuCI. OpenWrt even recommends it: "Non-experienced users are strongly advised to sysupgrade from the web admin GUI instead."

Apologize I haven't noticed that, I'll remove what I wrote above.