Why doesn't traffic go through VLAN in Mikrotik until Torch is launched on it?

Question

Data transfer

There is Mikrotik , it has a VLAN , let's say " 1000 ", untagged traffic goes through the first interface, Vlan 1000 is connected by a bridge to the first interface, and goes further along the l2 equipment, at the other end there is a switch with the same Vlan, on the Vlan itself There are Mac addresses, but there is no data transfer, but if you start torch on Mikrotik on Vlan'e 1000 or the first interface, then the computer on the other end starts receiving data.

Answer 1

and goes further along the l2 equipment, at the other end there is a switch with the same Vlan,

If there is a stupid l2 switch , it may surprisingly not skip vlan.
Of course, now it's hard to find someone who would not skip frames with a tag or 1518, but everything can be.
Well, advice, do not use vlan and bridge, it squanders the CPU.
Do it via switch chip