Everybody - with this enormous frequency and bandwidth of topics in this thread, it’s hard to impossible to properly track and understand all posts, replies and how they relate to each other.
Please allow me to remind you of the special conditions that apply for posting in this thread.
BEFORE you post, make reasonably sure your issue is caused by OH 5.1 software and specifically by the difference from 5.0 to 5.1, i.e. it would not have surfaced if you had upgraded only to 5.0.
As a rule of thumb: if you upgraded from 4.x or older, do not post here unless you identified the relation to any of the new features or breaking changes listed in the 5.1 release notes.
Anything else, please open a separate thread.
The set of posting guidelines you should know and abide are here.
Please help with keeping our community forum a useful, easy and efficient to use resource for all openHAB users.
Thank you!