I don't know how to answer aka_busker's question unless this is the correct way... hopefully so.
The tablets don't have a brand name on them, but the model is TS-704A. android 9.0, Baseband version MOLY..WR8.W1315.V51,2019/01/10 20:15 A GB Ram 128 GB internal storage 10 Core 2.5G CPU2560X1600IPS resolution 3.4.67 Kernel version Build number ALPS.KK1.MP1.V2.36 Custom build version ZL10V2.0G_0_yitexing_9365D_QC_31PIN_DH_V1.0_20191205
That's probably overkill, but all I can find about the devices. Thanks for replying. I assume when you say "try updating your devices", you mean the OS? Or the firmware? Or... ? Sorry... I'm really out of my league here. :(
Thank you for replying.