high count of dropped packets

[ѽ҉ᶬḳ℠]

Hi,

I am experiencing an inexplicable high count of dropped packets between
2 wg nodes:

local node (0.0.20190123 in kernel mode on OpenWRT 18.06 with kernel
4.14.113)

> wg0: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1420 qdisc cake state UNKNOWN
> mode DEFAULT group defau
>     link/none  promiscuity 0
>     wireguard addrgenmode none numtxqueues 1 numrxqueues 1
> gso_max_size 65536 gso_max_segs 65535
>     RX: bytes  packets  errors  *dropped* overrun mcast
>     8598420    6020     0           *9518*        0              0
>     TX: bytes  packets  errors  dropped carrier collsns
>     3188456    12491    0       0       0       0

remote node (0.0.20190406 in kernel mode on Ubuntu 19.04 with kernel
5.0.0-13)

>  wg0: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state
> UNKNOWN mode DEFAULT group default qlen 1000
>     link/none  promiscuity 0
>     wireguard addrgenmode none numtxqueues 1 numrxqueues 1
> gso_max_size 65536 gso_max_segs 65535
>     RX: bytes                          packets  errors  dropped
> overrun mcast
>     1442441184 3511784  1386        50      0       0
>     TX: bytes        packets  errors  dropped carrier collsns
>     8661652804 7150433  0       454     0       0

What could be the cause and how to remedy?