@RealStaticVoID Hello. I've installed firmware version 1.5.2 and the issue is resolved.

@Joseph-TP Hello. No error message appears. I simply select a time period and save. I navigate through the system tool options, and the value has disappeared and asks me to select a period again....

@Chuck26 Hello. After fw update 1.2.10 there is a possibility to select the schedule for automatic updates, but this value is not saved. Thanks.

@Giang97 Hello. I have not this issue.

Hello. I can confirm, that using browser Light theme on my Windows PC and on my Android smartphone fix the problem. Thanks.

@Kevin_Z Hello. I can confirm, that using browser Light theme on my Windows PC and on my Android smartphone fix the problem. Thanks.