Tor fails to connect to network on fire tablet

I’m able to upload tor browser and install it onto my Amazon Fire tablet [Fire HD 8 (10th Generation)] but when I fire it up it fails to connect without any message - just sits there.

Does anyone else have this problem?
Any workarounds?

thx in advance - attila

PS: I tried all built-in bridges, also w/ and w/o VPN connection… no joy! <8(