@Y_Garden interesting. I thought I pushed a fix for this a couple weeks ago

@RonR hmm. I updated those to fix the install for missing dependencies. Don’t know why you have them out of sequence

Do

cd modules/MMM-Config

And

git checkout xxxx

For each of the files

Then

git pull 

To resync the MMM-Config module

@DarrenO-0 also can you look at the output of npm start or however you start MagicMirror
And find the messages

Broadcasting xxx messages for url xxxx

Collect 15 of those messages either the timestamp
Xxx out the url string, or match them to your 4 utls
These messages should be on the fetchInterval time cycle

Each url fetch is done separately, and they contribute to the shown list of events immediately , which may cause a visual flash

Looking at the code, it uses fixed timers which is restarted for the next cycle after processing this cycle. So that means longer/larger calendar lists will take longer than shorter ones. This will cause the fetch cycles to drift apart and constantly change
I’m guessing is this is the randomness

The log messages should show consistent cycle times for an individual url, but varying separation between url fetches
If your system is low on memory and utilizes swap on an sd card this could also affect processing time for larger calendar memory requirements, causing additional drift

@Y_Garden can you send me the ~/install.log
Using my userid here at gmail
Are you trying the 32 bit or 64 bit os image?

@benhmin no, that is different

15 minutes is 15 x 60 x 1000
1000 ms/second
60 seconds/minute

@xylyn for test, if you disable the caldav module, does the network traffic go away?

@RonR is the module set to fullscreen_below position?
I don’t know more about this module

I spent a lot of time on MMM-ImagesPhotos to keep the the photo aspect ratio, and all the picture on screen.

@DarrenO-0 can you post the config for calendar, xxx out your urld

@ankonaskiff17 weather is done all in browser.
Open the developers window, ctrl-shift-I,
Select the console tab, put weath in the filter field

@ankonaskiff17 is MagicMirror auto starting?

Stop it