Thank you for your response!
I tried it and it worked after a openhab restart.
In addition to that i have some strange behaviour for the past weeks.
If i make changes to an item that has homekit metadata the database of the homekit items is correctly updated (i see that in the logs) but the items do not respond in the homekit app and i get a warning if i try to control them.
this warning for window covering:
2023-03-02 07:29:18.356 [WARN ] [.impl.json.CharacteristicsController] - Accessory 536064874 does not have characteristic 15. Request: /characteristics?id=536064874.9,536064874.10,536064874.13,536064874.15,536064874.16
2023-03-02 07:29:18.356 [WARN ] [.impl.json.CharacteristicsController] - Accessory 536064874 does not have characteristic 16. Request: /characteristics?id=536064874.9,536064874.10,536064874.13,536064874.15,536064874.16
2023-03-02 07:29:18.807 [WARN ] [.impl.json.CharacteristicsController] - Accessory 536064874 does not have characteristic 16. Request: /characteristics?id=536064874.9,536064874.10,536064874.13,536064874.16,536064874.15
2023-03-02 07:29:18.807 [WARN ] [.impl.json.CharacteristicsController] - Accessory 536064874 does not have characteristic 15. Request: /characteristics?id=536064874.9,536064874.10,536064874.13,536064874.16,536064874.15
this for a simple switch:
2023-03-02 07:33:33.531 [WARN ] [.impl.json.CharacteristicsController] - Accessory 317426775 does not have characteristic 16. Request: /characteristics?id=122359787.9,420298086.9,672925075.9,1588221683.9,1588221683.13,1588221683.10,1588221683.16,1588221683.15,7520915.13,7520915.9,7520915.10,7520915.16,7520915.15,1035500264.9,707732754.9,272633504.9,272633504.13,272633504.10,272633504.15,272633504.16,63040835.9,1992607353.10,1992607353.9,1187023251.9,337204133.9,1069688781.10,1069688781.9,1325919103.9,1325919103.10,1325919103.13,1325919103.15,1325919103.16,551539028.9,1135034829.9,1637154151.9,1573414624.9,1573414624.10,1998834236.9,189081559.9,1813585166.9,291150899.9,1771442552.9,1082054109.13,1082054109.9,1082054109.10,1082054109.15,1082054109.16,802708556.10,802708556.9,24415338.9,395287172.9,1837713023.9,1097634726.9,1544372680.10,1544372680.13,1544372680.9,1544372680.15,1544372680.16,261303201.9,1956182678.9,658697385.10,658697385.9,586257433.10,586257433.9,860409099.9,1140173716.9,1783366672.9,1498526298.9,1498526298.11,1498526298.10,914255302.9,1941472395.9,1941472395.10,1941472395.13,1941472395.16,1941472395.15,30124215.9,1537975698.9,2094159638.10,2094159638.9,2094159638.13,2094159638.12,966594812.9,1050943119.9,227528200.10,227528200.13,227528200.9,227528200.16,227528200.15,1261478156.9,2015766948.10,2015766948.13,2015766948.9,2015766948.16,2015766948.15,2094159634.13,2094159634.9,2094159634.12,2094159634.10,1829370592.9,1829370592.10,1678218348.10,1678218348.9,1678218348.13,1678218348.15,1678218348.16,1597912358.9,1597912358.10,2094159639.12,2094159639.13,2094159639.9,2094159639.10,1458183087.9,1238180247.10,1238180247.9,786593739.10,786593739.9,66643324.9,1710286423.9,336507313.9,794592433.9,1515086093.9,367209723.9,1171193743.9,1193517785.9,1193517785.10,1043590123.10,1043590123.9,1121949176.9,1243965616.9,895600356.9,429927697.9,1687660813.9,1351343716.9,1563634569.9,2094159636.13,2094159636.9,2094159636.12,2094159636.10,2117234634.9,1704612262.9,98072977.10,98072977.9,2015766793.9,2015766793.13,2015766793.10,2015766793.16,2015766793.15,665909211.10,665909211.13,665909211.9,665909211.15,665909211.16,2051317048.9,695004271.9,1816209385.9,1465096659.9,1465096659.10,1585882882.10,1585882882.9,952715471.9,536064874.10,536064874.9,536064874.13,536064874.15,536064874.16,884619398.10,884619398.9,1092324285.9,536064719.9,536064719.10,536064719.13,536064719.15,536064719.16,720494648.9,672215642.9,672215642.10,1529581363.9,1103350590.10,1103350590.9,797165007.10,797165007.9,1168503557.9,534809755.9,488683925.9,2094159637.12,2094159637.9,2094159637.10,2094159637.13,2094159635.12,2094159635.9,2094159635.10,2094159635.13,2010378418.9,2010378418.10,2117287953.9,414365483.9,1363088016.9,2046801067.9,1996530533.9,1822192338.9,532595158.10,532595158.9,532595158.13,532595158.15,532595158.16,650962063.10,650962063.9,1218185304.9,138356270.9,1714984597.9,375765873.10,375765873.13,375765873.9,375765873.15,375765873.16,934942650.9,934942650.10,2143395767.9,317426775.13,317426775.9,317426775.10,317426775.16,317426775.15
2023-03-02 07:33:33.531 [WARN ] [.impl.json.CharacteristicsController] - Accessory 317426775 does not have characteristic 15. Request: /characteristics?id=122359787.9,420298086.9,672925075.9,1588221683.9,1588221683.13,1588221683.10,1588221683.16,1588221683.15,7520915.13,7520915.9,7520915.10,7520915.16,7520915.15,1035500264.9,707732754.9,272633504.9,272633504.13,272633504.10,272633504.15,272633504.16,63040835.9,1992607353.10,1992607353.9,1187023251.9,337204133.9,1069688781.10,1069688781.9,1325919103.9,1325919103.10,1325919103.13,1325919103.15,1325919103.16,551539028.9,1135034829.9,1637154151.9,1573414624.9,1573414624.10,1998834236.9,189081559.9,1813585166.9,291150899.9,1771442552.9,1082054109.13,1082054109.9,1082054109.10,1082054109.15,1082054109.16,802708556.10,802708556.9,24415338.9,395287172.9,1837713023.9,1097634726.9,1544372680.10,1544372680.13,1544372680.9,1544372680.15,1544372680.16,261303201.9,1956182678.9,658697385.10,658697385.9,586257433.10,586257433.9,860409099.9,1140173716.9,1783366672.9,1498526298.9,1498526298.11,1498526298.10,914255302.9,1941472395.9,1941472395.10,1941472395.13,1941472395.16,1941472395.15,30124215.9,1537975698.9,2094159638.10,2094159638.9,2094159638.13,2094159638.12,966594812.9,1050943119.9,227528200.10,227528200.13,227528200.9,227528200.16,227528200.15,1261478156.9,2015766948.10,2015766948.13,2015766948.9,2015766948.16,2015766948.15,2094159634.13,2094159634.9,2094159634.12,2094159634.10,1829370592.9,1829370592.10,1678218348.10,1678218348.9,1678218348.13,1678218348.15,1678218348.16,1597912358.9,1597912358.10,2094159639.12,2094159639.13,2094159639.9,2094159639.10,1458183087.9,1238180247.10,1238180247.9,786593739.10,786593739.9,66643324.9,1710286423.9,336507313.9,794592433.9,1515086093.9,367209723.9,1171193743.9,1193517785.9,1193517785.10,1043590123.10,1043590123.9,1121949176.9,1243965616.9,895600356.9,429927697.9,1687660813.9,1351343716.9,1563634569.9,2094159636.13,2094159636.9,2094159636.12,2094159636.10,2117234634.9,1704612262.9,98072977.10,98072977.9,2015766793.9,2015766793.13,2015766793.10,2015766793.16,2015766793.15,665909211.10,665909211.13,665909211.9,665909211.15,665909211.16,2051317048.9,695004271.9,1816209385.9,1465096659.9,1465096659.10,1585882882.10,1585882882.9,952715471.9,536064874.10,536064874.9,536064874.13,536064874.15,536064874.16,884619398.10,884619398.9,1092324285.9,536064719.9,536064719.10,536064719.13,536064719.15,536064719.16,720494648.9,672215642.9,672215642.10,1529581363.9,1103350590.10,1103350590.9,797165007.10,797165007.9,1168503557.9,534809755.9,488683925.9,2094159637.12,2094159637.9,2094159637.10,2094159637.13,2094159635.12,2094159635.9,2094159635.10,2094159635.13,2010378418.9,2010378418.10,2117287953.9,414365483.9,1363088016.9,2046801067.9,1996530533.9,1822192338.9,532595158.10,532595158.9,532595158.13,532595158.15,532595158.16,650962063.10,650962063.9,1218185304.9,138356270.9,1714984597.9,375765873.10,375765873.13,375765873.9,375765873.15,375765873.16,934942650.9,934942650.10,2143395767.9,317426775.13,317426775.9,317426775.10,317426775.16,317426775.15```