#include<FS.h>#include<ArduinoJson.h>voidsetup() {    Serial.begin(9600);if(!SPIFFS.begin()){        Serial.println("SPIFFS Failed to Start.");    }        DynamicJsonDocumentdoc(2048);    doc["wifi"] ="eyJ1c2VyXwMjIiLCJ0b2tlbiI6IjZhZTI2MjIxY2E1MGM3MWQ1ODMzNjdkM2ZlNTgyNGRmM2I4MTcwZGEwZmU0NDQ5M2VjOWY0OWVhNjZjMTllMTk4MmEwOTgwNDAzNDBiMmMxNWU3YjAyZjBlZDRjNTM2NzgzNzlkNDgxYjcxMDk4ZTRkMzlmZGIxNiJ9123123124asdfasdfasdfaasdfasdfdsf131234124asdfsadffadf12345561";//serializeJson to String, then to file is ok.//String text;//serializeJson(doc, text);    File file = SPIFFS.open("wifi.txt","w");//file.print(text);serializeJson(doc, file);//bug    file.close();LoadWifiConfig();    SPIFFS.exists("2.txt");//call other file nameLoadWifiConfig();}voidloop() {}voidLoadWifiConfig() {    String encText;    File file = SPIFFS.open("wifi.txt","r");while (file.available()) {char abc = (char)file.read();if (abc <0x10) {            Serial.print("0");        }        Serial.print(String(abc, HEX));        encText += abc;    }    file.close();    Serial.println("");    Serial.println("From Text:");    Serial.println(encText);    Serial.println(encText.length());return;}

10:02:38.739 -> �⸮�@⸮⸮⸮�⸮b⸮⸮⸮SPIFFSImpl: allocating 512+240+1400=2152 bytes10:02:38.851 -> SPIFFSImpl: mounting fs @200000, size=1fa000, block=2000, page=10010:02:39.001 -> SPIFFSImpl: mount rc=010:02:39.001 -> 10:02:39.038 -> SPIFFS_close: fd=110:02:39.038 -> SPIFFS_close: fd=110:02:39.075 -> 7b2277696669223a2265794a316332567958774d6a49694c434a306232746c62694936496a5a685a5449324d6a4978593245314d474d334d5751314f444d7a4e6a646b4d325a6c4e5467794e47526d4d3249344d5463775a4745775a6d55304e4451354d32566a4f5759304f5756684e6a5a6a4d546c6c4d546b344d6d45774f5467774e44417a4e4442694d6d4d784e[String] Reallocating large String(143 -> 144 bytes) '{"wifi":"e ... AzNDBiMmMx'10:02:39.447 -> 575533596a41795a6a426c5a44526a4e[String] Reallocating large String(159 -> 160 bytes) '{"wifi":"e ... AyZjBlZDRj'10:02:39.559 -> 544d324e7a677a4e7a6c6b4e44677859[String] Reallocating large String(175 -> 176 bytes) '{"wifi":"e ... gzNzlkNDgx'10:02:39.671 -> 6a63784d446b345a54526b4d7a6c6d5a[String] Reallocating large String(191 -> 192 bytes) '{"wifi":"e ... k4ZTRkMzlm'10:02:39.821 -> 4749784e694a39313233313233313234[String] Reallocating large String(207 -> 208 bytes) '{"wifi":"e ... J912312312'10:02:39.934 -> 61736466617364666173646661617364[String] Reallocating large String(223 -> 224 bytes) '{"wifi":"e ... sdfasdfaas'10:02:40.046 -> 66617364666473663133313233343132[String] Reallocating large String(239 -> 240 bytes) '{"wifi":"e ... dsf1312341'10:02:40.159 -> 34617364667361646666616466313233[String] Reallocating large String(255 -> 256 bytes) '{"wifi":"e ... sadffadf12'10:02:40.268 -> 3435353631227dSPIFFS_close: fd=110:02:40.306 -> SPIFFS_close: fd=110:02:40.343 -> 10:02:40.343 -> From Text:10:02:40.343 -> {"wifi":"eyJ1c2VyXwMjIiLCJ0b2tlbiI6IjZhZTI2MjIxY2E1MGM3MWQ1ODMzNjdkM2ZlNTgyNGRmM2I4MTcwZGEwZmU0NDQ5M2VjOWY0OWVhNjZjMTllMTk4MmEwOTgwNDAzNDBiMmMxNWU3YjAyZjBlZDRjNTM2NzgzNzlkNDgxYjcxMDk4ZTRkMzlmZGIxNiJ9123123124asdfasdfasdfaasdfasdfdsf131234124asdfsadffadf12345561"}10:02:40.634 -> 26310:02:40.634 -> 7b2277696669223a2265794a316332567958774d6a49694c434a306232746c62694936496a5a685a5449324d6a4978593245314d474d334d5751314f444d7a4e6a646b4d325a6c4e5467794e47526d4d3249344d5463775a4745775a6d55304e4451354d32566a4f5759304f5756684e6a5a6a4d546c6c4d546b344d6d45774f5467774e44417a4e4442694d6d4d784e[String] Reallocating large String(143 -> 144 bytes) '{"wifi":"e ... AzNDBiMmMx'10:02:41.006 -> 575533596a41795a6a426c5a44526a4e[String] Reallocating large String(159 -> 160 bytes) '{"wifi":"e ... AyZjBlZDRj'10:02:41.119 -> 544d324e7a677a4e7a6c6b4e44677859[String] Reallocating large String(175 -> 176 bytes) '{"wifi":"e ... gzNzlkNDgx'10:02:41.230 -> 6a63784d446b345a54526b4d7a6c6d5a[String] Reallocating large String(191 -> 192 bytes) '{"wifi":"e ... k4ZTRkMzlm'10:02:41.379 -> 4749784e694a39313233313233313234[String] Reallocating large String(207 -> 208 bytes) '{"wifi":"e ... J912312312'10:02:41.492 -> 61736466617364666173646661617364[String] Reallocating large String(223 -> 224 bytes) '{"wifi":"e ... sdfasdfaas'10:02:41.602 -> 66617364666473663133313233343132[String] Reallocating large String(239 -> 240 bytes) '{"wifi":"e ... dsf1312341'10:02:41.715 -> 34617364667361646666616466313233[String] Reallocating large String(255 -> 256 bytes) '{"wifi":"e ... sadffadf12'10:02:41.826 -> 34353536ffffffSPIFFS_close: fd=110:02:41.864 -> SPIFFS_close: fd=110:02:41.902 -> 10:02:41.902 -> From Text:10:02:41.902 -> {"wifi":"eyJ1c2VyXwMjIiLCJ0b2tlbiI6IjZhZTI2MjIxY2E1MGM3MWQ1ODMzNjdkM2ZlNTgyNGRmM2I4MTcwZGEwZmU0NDQ5M2VjOWY0OWVhNjZjMTllMTk4MmEwOTgwNDAzNDBiMmMxNWU3YjAyZjBlZDRjNTM2NzgzNzlkNDgxYjcxMDk4ZTRkMzlmZGIxNiJ9123123124asdfasdfasdfaasdfasdfdsf131234124asdfsadffadf1234556⸮⸮⸮10:02:42.194 -> 263