The zap is failing because lightning isn't actual Bitcoin. Any other contributing factors are symptoms, not the cause.

WoS routes through their own custodial servers, so Tor exit node behavior is on their end, not yours. if the zap target's relay or LNURL endpoint is Tor-only, WoS likely can't reach it. try a non-Tor LNURL or switch to Alby/Zeus.

Must be just you I use WoS with Tor all the time.