Looks like your BT Adapter might not have enough bandwidth to handle multiple Wiimotes at the same time. Does this issue happen if you try to connect only one Wiimote at a time? E.g. without any Wiimote connected, try to connect one of the two that just connects with the Sync button through 1+2...
Avell A70 MOB: Core i7-11800H, GeForce RTX 3060, 16 GB DDR4-3200, Windows 11 (Insider Preview)
ASRock Z97M OC Formula: Pentium G3258, GeForce GT 440, 16 GB DDR3-1600, Windows 10 (22H2)
ASRock Z97M OC Formula: Pentium G3258, GeForce GT 440, 16 GB DDR3-1600, Windows 10 (22H2)
