Interepoch arp problem

I need help - my connection looks like that

mt->wds-tonze->switch->ap interepochw iwe1100adv and it worked - but yesterday something goes wrong (I did not change anything) but clinents on this subnet cannot ping even gateway, as I cannot see this clients in arp table in my MT (lease was given) - wds-tonze has arp enabled but as i think iwe mask macs - or something - then I’ve changed to proxy-arp - still doesn’t work, a must say that one client which is connected directly do switch has internet connection

what can be wrong that mt is blocking access

something to do with address pool in hotspot profile?
Mikrotik will send wrong ARP for unknown reason for any alive node address in the network.