Stuck while installing LOS/iodeOS on tangerpro in recovery

Hello, I was trying to install following the steps for LOS. I was at Step 3 here: https://wiki.lineageos.org/devices/tangorpro/install/#installing-lineageos-from-recovery but I never got the Return to main menu in #4. Instead I ended up in the white screen called “Google” and that is where it was stuck. Ultimately, I was able to force reboot and get back into recovery, however, I can not sideload. I have the options Reboot system now, Apply Update, Factory Reset, Advanced, but when I get to Apply Update → “Apply from ADB” then I do not get the “ADB sideload” highlighted and so am unable to do adb -d sideload zip file. What should I do here?

I guess it is possible that the USB cable got disconnected while doing the force reboot. Any suggestions on how I should proceed? Btw, under Advanced, I get enter fastboot, reboot to recovery, restart bootloader. Would any of these help?

I do hope that I get my device back. I am happy to go back to stock and then retry all over again.

Many thanks in advance for any suggestions and help!

I would retry sideloading from recovery (you are using the recovery I produced along with my build correct?). You can use adb devices when at the “ADB Sideload” screen to see if your device is detected, then proceed with adb sideload zip.zip