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Yes wonderful, now it works, thanks!

Testuser1 has two posting keys, was that the problem? If I'm not mistaken, I couldn't log in to steempro with the second key (some time ago, before Steem-Keychain was integrated).

Hello @michelangelo3, I have found the issue of scheduling post without keychain, and the fixes are implemented! Thank you for using SteemPro! Best wishes to you.

Maybe, I test some operation manually, and also remove all the old schedules for testuser1