No, it didn't. I simply stop using wireguard for now. It was a remote site that I have contact few days in a year.
For now, it was the safest solution.
The problem manifested only on the side that has an unstable ADSLv2 link. It resets multiple times a day.
Maybe the memory problem is related to a change in WAN ip address (ADSL never reuse previous addresses).
Regards,
Luiz