Erratic behavior storing data in database

I just created an app and I am testing it and I have an erratic behavior of the dB whereby sometimes it is not storing the record I have created. I dont know where to look since it doesn’t happen all the time. If somebody has any idea where to look I would be ecstatic.
Thanks

does the data has a seperate collection?
it might cause it

Thanks for the prompt reply. I have few static data from the user’s dB that I use to do the math in my journal of entries. On another note I noticed that I can store infos if they are dated in the past or in the future but not today. I just noticed this now. I don’t know if this makes any sense to you.
Thanks again

i dont pretty understand

can you make it clear?

I have two dB one (users) with a list of attributes and then another one (Journal of entries) with a list of daily activities. The two dB are properly linked together. Within the user’s dB there are items that are used to calculate formulas within the journal of entries. ie in the user dB i have a cellecion called miles/gal which it will then be used to calculate in the journal of entries my specific cost of the day for a specific ride knowing the cost/gal of gas. Basically every day I am posting the actual mileage and the relative cost. I am simplifying the whole thing but this is basically what I am doing. The last comment I made was referred to the fact that If I am posting a ride with today date it will not let me do it but if I use and different date whether in the past or in the future it will let me do it. I did see it today so I don’t know if I can replicate it consistently. Please let me if it is clearer and thanks for helping.

am confused for real

I am collecting daily trip with my car and when I try to create the record using today’s date it is not doing it (it is not creating the record), however at times If I post the activity using yesterday date or tomorrow date it will post it. I am pulling data from 2 dB as mentioned in prior email. thanks

u can use a date picker and format it to start of today

I did indeed set up in my form a date picker and If pick today date it will not store the information contained in my form however if I use yesterday date or tomorrow date it will store the infos. Really crazy