ESP32 BLE examples not working

I bought this (ESP32 Development Board WiFi+Bluetooth Ultra Low Power Consumption Dual Core ESP 32 ESP 32S ESP 32 Similar ESP8266|board wifi|esp 32board board - AliExpress ) board and i have tried to use most of the BLE examples.
For the board in the IDE i chose ESP32 Dev Module.

It compiles and flashes the program fine and i see the esp in the nRF connect app, but when I try to connect, it tries to connect for a while and then I get "Error 133 (0x85): GATT ERROR"

Specifically I'm interested in the BLE_server and notify examples.

but when I try to connect, it tries to connect for a while and then I get "Error 133 (0x85): GATT ERROR"

Connect to what? Using what Service?

I tried to connect my phone to the esp32 through the nRF connect app, and the error i saw was in the app.

By the way I decided to try this again today and magically it all just worked. I didn't change anything and i did everything exactly the same way as yesterday. I have no clue whatsoever why it started working.

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