For me, from April 1st to April 16th, all the Spirit Stones (bonus) stop expiring. I found out yesterday that it was a server issue....so when it was fixed, about 500 SS expire at once on April 17. Now it is back to normal.
When did your bonus Spirit Stone stop expiring? (I'm assuming everyone SS start expiring again on April 17)
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Expired
Web -5 2018-04-17 22:26
Expired
Web -10 2018-04-17 22:26
Expired
Web -20 2018-04-17 22:26
Expired
Web -7 2018-04-17 22:26
Expired
Web -4 2018-04-17 19:30
Expired
Web -5 2018-03-31 10:04
Expired
Web -5 2018-03-31 10:04
Expired
Web -18 2018-03-31 10:04