Hi, i had some problems flashing this, don't know why, first i tried with the latest official twrp available on official site, but i was stuck on a bootloop . i was flashing los 20 AND gapps you provide in a single time, using the function of twrp " install more zip after this" (or something Like this) like i always do. So i search om web and found another los 20 post for clover here on xda, providing a modded versione of twrp (named 4.19 TWRP created by pix106). With this i successfully did the flash of only los just for try, and i was able to boot into system. So i came back in recovery to flash gapps but i found a stuck twrp to the logo screen (never happen this to me). After some try, i decided to try flash the official twrp from official site again, it worked, i made a factory reset, flash gapps (but not the one you suggest, the latest nikgapps instead) and everything works fine, these are the steps i had to flash successfully, more or less......
Except one last ting:
I nave the gyroscope not working. To flip in landscape i have to start a lansscape game, then exit and i have lansdscape. To come back in portrait i have to lock and unlock the tablet.... Any suggestion?