Nah. I got my RB5009 since february of this year and I see in that 7.6RC thread I discussed it in oct 2022.Maybe it's platform dependent? I've only tested arm64 (rb5009).
[admin@MikroTik] > :put [/interface/wireguard/peers/get [find where interface=wg-rw-01] value-name=rx ] 995382692
Happens in Winbox too.This is very easy to recreate.
1) Open webfig to the peer section so you can see the counters.
2) Push more than 4GiB of traffic, I push 5 just to be sure. (While on the page the counters will move past 4GiB without issue, but the counter history cannot save more than 4GiB)
3) Navigate away from the page to lets say the Interfaces page.
4) Go back to the wireguard/peers page and you will see the counters have reset.
Tested with CCR2216 on 7.10rc1.