Some records have lags

Hello, I would like to contact you regarding an issue within Premiere Pro. I use the My Asus program to transfer files/videos/photos from the phone to the PC and vice versa, I have the following problem: I transfer the recording (already trimmed on the phone) from the phone to the laptop using this My Asus program, after which I add to the montage and there, I already have a recording with micro lags playing in the preview, but there is not a single lag in the recording, although before that everything was ok - for the last six months, I cut the beginning/end of the recording in the phone, after which I transferred it to the laptop, where everything played fine in the editing, and now only those records that I do not shorten in the phone are played without lags. What could be the problem?

[subject edited for clarity — was "Help me please"]