Solution
The issue could happen because a conflict happens between the channel name and the channel number. In the module VIEW, different commands are called in such a way that thereby channels are addressed not by the name, but by the channel number. Therefore, it is recommended to use meaningful channel names, so names are prioritized to avoid this issue. To fix it, try to ensure no channels in the data portal are named with only numbering.
Using the above issue as an example, change the channel name from numbering to a meaningful channel name. You should be able to flag the signal in the RPM channel after renaming the conflict channel.
