DSL Rules don't load

Yesterday I migrated from 2.5 and almost everything went smothly.
Great work!
Especially the graphs are excellent for monitoring powerconsumption via my Inverter.
Only my DSL rules won’t load. The UI keeps blinking (Loading) and everything is greyed.
This are the rules from REST-API:

[
{
“status”: {
“status”: “IDLE”,
“statusDetail”: “NONE”
},
“editable”: true,
“triggers”: [
{
“id”: “1”,
“label”: “an item state is updated”,
“description”: “This triggers the rule if an item state is updated (even if it does not change).”,
“configuration”: {
“itemName”: “Cube_”,
“state”: “rotate_left”
},
“type”: “core.ItemStateUpdateTrigger”
}
],
“conditions”: [],
“actions”: [
{
“inputs”: {},
“id”: “2”,
“label”: “send a command”,
“description”: “Sends a command to a specified item.”,
“configuration”: {
“itemName”: “BueroWhiteLamp1_Helligkeit”,
“command”: “OFF”
},
“type”: “core.ItemCommandAction”
}
],
“configuration”: {},
“configDescriptions”: [],
“uid”: “40568602-6807-46ce-81a7-526004a04891”,
“tags”: [],
“visibility”: “VISIBLE”,
“description”: “Cube_off”
},
{
“status”: {
“status”: “UNINITIALIZED”,
“statusDetail”: “DISABLED”
},
“editable”: true,
“triggers”: [
{
“id”: “2”,
“label”: “A thing status changes”,
“description”: “This triggers the rule if a thing status has changed.”,
“configuration”: {
“thingUID”: “exec:command:ae5e4bd0”
},
“type”: “core.ThingStatusChangeTrigger”
}
],
“conditions”: [
{
“inputs”: {},
“id”: “1”,
“label”: “it is a certain time of day”,
“description”: “Evaluates if the current time is within a user-configured time span.”,
“configuration”: {
“startTime”: “09:30”,
“endTime”: “12:00”
},
“type”: “core.TimeOfDayCondition”
}
],
“actions”: [
{
“inputs”: {},
“id”: “3”,
“label”: “send a command”,
“description”: “Sends a command to a specified item.”,
“configuration”: {
“itemName”: “SGRedeyShelly1_Relay_Betrieb”,
“command”: “ON”
},
“type”: “core.ItemCommandAction”
}
],
“configuration”: {},
“configDescriptions”: [],
“uid”: “444b5459-2b4e-4302-95eb-9da032803cc4”,
“tags”: [],
“visibility”: “VISIBLE”,
“description”: “Wp”
},
{
“status”: {
“status”: “IDLE”,
“statusDetail”: “NONE”
},
“editable”: true,
“triggers”: [
{
“id”: “3”,
“label”: “an item state is updated”,
“description”: “This triggers the rule if an item state is updated (even if it does not change).”,
“configuration”: {
“itemName”: “Cube_”,
“state”: “flip90”
},
“type”: “core.ItemStateUpdateTrigger”
}
],
“conditions”: [],
“actions”: [
{
“inputs”: {},
“id”: “2”,
“label”: “send a command”,
“description”: “Sends a command to a specified item.”,
“configuration”: {
“itemName”: “Sofa_Sofa”,
“command”: “ON”
},
“type”: “core.ItemCommandAction”
}
],
“configuration”: {},
“configDescriptions”: [],
“uid”: “d0cca4f6-3086-4b93-8f49-ebb203edce49”,
“tags”: [],
“visibility”: “VISIBLE”,
“description”: “Sofa”
},
{
“status”: {
“status”: “IDLE”,
“statusDetail”: “NONE”
},
“editable”: true,
“triggers”: [
{
“id”: “1”,
“label”: “an item state is updated”,
“description”: “This triggers the rule if an item state is updated (even if it does not change).”,
“configuration”: {
“itemName”: “Cube_”,
“state”: “rotate_right”
},
“type”: “core.ItemStateUpdateTrigger”
}
],
“conditions”: [],
“actions”: [
{
“inputs”: {},
“id”: “2”,
“label”: “send a command”,
“description”: “Sends a command to a specified item.”,
“configuration”: {
“itemName”: “BueroWhiteLamp1_Helligkeit”,
“command”: “ON”
},
“type”: “core.ItemCommandAction”
}
],
“configuration”: {},
“configDescriptions”: [],
“uid”: “043a78b1-e985-40c0-a312-9e6e39ea7a39”,
“tags”: [],
“visibility”: “VISIBLE”,
“description”: “Cube”
},
{
“status”: {
“status”: “IDLE”,
“statusDetail”: “NONE”
},
“editable”: true,
“triggers”: [
{
“id”: “1”,
“label”: “it is a fixed time of day”,
“description”: “Triggers at a specified time”,
“configuration”: {
“time”: “07:01”
},
“type”: “timer.TimeOfDayTrigger”
}
],
“conditions”: [],
“actions”: [
{
“inputs”: {},
“id”: “2”,
“label”: “send a command”,
“description”: “Sends a command to a specified item.”,
“configuration”: {
“itemName”: “Steckdose2_Stecker2”,
“command”: “ON”
},
“type”: “core.ItemCommandAction”
}
],
“configuration”: {},
“configDescriptions”: [],
“uid”: “99c6b753-2254-4862-9733-870d72e4448a”,
“tags”: [],
“visibility”: “VISIBLE”,
“description”: “Licht”
},
{
“status”: {
“status”: “IDLE”,
“statusDetail”: “NONE”
},
“editable”: true,
“triggers”: [
{
“id”: “3”,
“label”: “an item state is updated”,
“description”: “This triggers the rule if an item state is updated (even if it does not change).”,
“configuration”: {
“itemName”: “Cube_”,
“state”: “fall”
},
“type”: “core.ItemStateUpdateTrigger”
}
],
“conditions”: [],
“actions”: [
{
“inputs”: {},
“id”: “2”,
“label”: “send a command”,
“description”: “Sends a command to a specified item.”,
“configuration”: {
“itemName”: “Sofa_Sofa”,
“command”: “OFF”
},
“type”: “core.ItemCommandAction”
}
],
“configuration”: {},
“configDescriptions”: [],
“uid”: “d916677d-4bfe-463b-8d4c-79a5c4da9990”,
“tags”: [],
“visibility”: “VISIBLE”,
“description”: “Sofa_off”
}
]