It seems you didn’t really read the posts of the others. This issue is caused by a bug of importing the settings from the old version to the new one. A very simple fix is to remove the settings / laser devices and just add them again. This worked for everyone so far. Not going back to the old version.
Another remark: xTool is not supported very well by LB because xTool is not interested. They have their own software and hinder the development of full LB support. So it’s not an issue of LB, it’s xTools fault. Let them know you are not satisfied with their level of LB support to make them increase their efforts.
It’s like Apple. If you buy xTool, stay in their ecosystem. If you want full LB support, don’t buy xTool.